Decapod crustaceans on dead coral from reef areas on the coast of Bahia, Brazil
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Nauplius 20(2): 145-169, 2012 145 Decapod crustaceans on dead coral from reef areas on the coast of Bahia, Brazil Patricia Souza Santos, Guidomar Oliveira Soledade and Alexandre Oliveira Almeida Universidade Estadual de Santa Cruz, Departamento de Ciências Biológicas. Rodovia Jorge Amado, km 16. 45662-900 Ilhéus, Bahia, Brazil. E-mails: (PSS) pssantosuesc@gmail.com; (GOS) gosoledade@gmail.com; (AOA) aalmeida@uesc.br (corresponding author). Abstract The decapod crustaceans inhabiting dead portions of the fire-coral Millepora alcicornis Linnaeus, 1758 and coral rubble were surveyed in six reef areas on the coast of the state of Bahia, Brazil, in 2011. A total of 453 specimens belonging to 39 species in the infraorders Stenopodidea (family Spongicolidae), Caridea (families Palaemonidae, Alpheidae, Hippolytidae, and Processidae), Axiidea (family Callianassidae), Gebiidea (family Upogebiidae), Anomura (family Porcellanidae), and Brachyura (families Majidae, Pilumnidae, Domeciidae, Panopeidae, and Grapsidae) were collected. Members of the families Alpheidae and Porcellanidae were prominent, with 14 and 9 species, respectively. Of the species collected, the alpheid shrimp Alpheus peasei (Armstrong, 1940) is recorded for the first time in the southwestern Atlantic. Microprosthema semilaeve (von Martens, 1872), Corallianassa hartmeyeri Schmitt, 1935, and Petrolisthes marginatu Stimpson, 1859 also had their known geographic ranges extended along the western Atlantic. Alpheus nuttingi (Schmitt, 1924), Synalpheus scaphoceris Coutière, 1910, and Pachycheles riisei (Stimpson, 1858) are new records for Bahia. Key words: coral reefs, Crustacea, cryptic fauna, Decapoda, new records. Introduction organisms, and sites for protection and food (including coral mucus) for mobile organisms Coral reefs are the most biodiverse (Coles, 1980; Gotelli and Abele, 1983; Garcia marine ecosystems (Abele, 1974; Reaka- et al., 2009; Leray et al., 2012). Kudla, 1997; Hoeksema et al., 2012). Many The cryptofauna is especially rich in groups are associated with living corals, species and biomass in coral reef communities. including non-colonial organisms such as Such cryptofauna consists predominantly flatworms, polychaetes, crustaceans, mollusks, of boring invertebrates such as sponges, echinoderms, sipunculans, bryozoans, and polychaetes, crustaceans, sipunculans, and fishes, as well as colonial invertebrates such bivalves (Kropp, 1987; Reaka-Kudla, 1997; as sponges and ascidians (Young, 1986; Hoeksema et al., 2012), and incrusting forms Scott, 1987; Nogueira, 2003; Oigman- and motile nestlers that inhabit crevices Pszczol and Creed, 2006; Garcia et al., 2008; generated by burrowing (Reaka-Kudla, 1997). Hoeksema et al., 2012). Living corals provide Perforating invertebrates, along with algae a hard substrate for the attachment of sessile and bacteria, are primarily responsible for
146 Santos et al.: Decapods on dead coral on the coast of Bahia, Brazil bioerosion, which may not only reduce the May 2011, 13º36’49.5”S / 38º54’16.2”W), strength of the coral skeleton, but may also kill Tassimirim (Cairú, May 2011, 13º34’49.6”S portions of coral colonies (Kropp, 1987). / 38º54’49.4”W), Taipús de Fora (Maraú, The living and the dead coral portions, July 2011, 13º56’22.0”S / 38º55’35.4”W), both in live colonies as well as in fragments Algodões (Maraú, August 2011, 14º04’37.1”S (coral rubble), serve as substrates for various / 38º57’17.2”W), Mutá (Porto Seguro, animals, which may use this microhabitat as a March and November 2011, 16º21’52.2”S / refuge from predators and as sites for feeding 39º00’15.9”W), and Coroa Vermelha (Santa and reproduction (Coles, 1980; Grajal and Cruz Cabrália, March 2011, 16º19’58.5”S / Laughlin, 1984; Young, 1986; Kropp, 1987; 39º00’21.5”W) (Fig. 1). Moreno-Forero et al., 1998). These portions are inhabited by epilithic organisms and a perforating biota composed of macroscopic and microscopic organisms (Moreno-Forero et al., 1998). Decapod crustaceans are prominent, where they are represented by an abundant and rich fauna (Coles, 1980; Grajal and Laughlin, 1984; Young, 1986; Moreno- Forero et al., 1998). The decapod crustaceans associated with living corals have been little studied in Brazil (Young, 1986; Nogueira, 2003; Johnsson et al., 2006; Oigman-Pszczol and Creed, 2006; Garcia et al., 2008; 2009). The northeastern Brazilian coast has the greatest coral biodiversity in the South Atlantic (Hetzel and Castro, 1994; Castro and Pires, 2001). Although the state of Bahia has the longest coastline of all Brazilian states and houses the largest and most diverse coral reefs, including large numbers of endemic species (Leão and Dominguez, Figure 1. Study area, coast of the state of Bahia, Brazil. 2000; Leão, 2002), no studies have specifically (CB) Camamu Bay. (TSB) Todos os Santos Bay. surveyed the decapod crustaceans in dead coral Arrows indicate (1) Municipality of Cairú, Boipeba Island; (2) Municipality of Maraú, Maraú Peninsula; in this region. Almeida et al. (2010, 2012) (3) Municipalities of Santa Cruz Cabrália and Porto reported, in general surveys, a few decapods in Seguro, where decapod crustaceans were sampled from crevices of coral rubble in southern Bahia. The dead coral. present study surveyed the fauna of decapod crustaceans associated with these reef habitats Samples were taken in the intertidal and in six reef areas of the coast of Bahia. shallow subtidal zones in shallow pools up to 1.5 m deep in general surveys. The salinity was measured with an optical refractometer. Two kinds of dead coral substrates were examined Material and Methods for decapods: dead portions of colonies of the fire-coral Millepora alcicornis Linnaeus, 1758 in The material examined was collected standing position and partially exposed during in 2011 during the project “Diversidade spring low tides and coral rubble taken from de Crustáceos do Sudeste e Sul da Bahia, tide pools (see Figs. 2A, B). Dead portions Brasil”. Sampling was carried out on coral of colonies of M. alcicornis were recognized reefs of the following beaches: Moreré (Cairú, by the algal covering and incrusting animals
Nauplius 20(2): 145-169, 2012 147 such as sponges, zoanthids and bryozoans. fixed in 70% ethanol for later identification to Portions of dead coral were detached from species level. Because males of the shrimp genus the colonies by hammer and chisel or taken Synalpheus Spence Bate, 1888 lack an appendix from the bottom and wrapped in plastic masculina on the endopod of the second pair bags to prevent the associated animals from of pleopods (see Tóth and Bauer, 2007; 2008), escaping. The fragments were also broken up the specimens were classified as non-ovigerous with a hammer and chisel, and the decapods (nov) and ovigerous female (ovf ). The obtained on the surface and cavities or galleries constructed mainly by polychaetes, bivalves, specimens were deposited in the crustacean and sipunculans (Figs. 2B, D). collection of the Universidade Estadual de Specimens obtained were anesthetized Santa Cruz, Ilhéus, Bahia, Brazil (UESC). The on ice and photographed, particularly shrimps classification adopted follows De Grave et al. of the family Alpheidae, where the color (2009). Other abbreviations used: (m) male, pattern has taxonomic significance; and then (f ) female, (ni) sex not identified. Figure 2. Habitats sampled and some decapod crustaceans found on dead coral on the coast of the state of Bahia, Brazil. (A) View of the Mutá Beach coral reef in Porto Seguro, where part of the samples was taken. On the right, note emerging colonies of the fire-coral Millepora alcicornis Linnaeus, 1758 during spring tide. (B) View of a broken piece of coral rubble, showing longitudinal and transverse galleries excavated by perforating fauna, which serve as a habitat for many decapod species. (C) The endolithic snapping shrimp Alpheus simus Guérin-Méneville, 1855 in a gallery in the dead skeleton of M. alcicornis Linnaeus, 1758. (D) The snapping shrimp Alpheus formosus Gibbes, 1850 in a crevice of coral rubble.
148 Santos et al.: Decapods on dead coral on the coast of Bahia, Brazil Results was collected in a crevice of coral rubble at a depth of 1–1.5 m. The present record A total of 453 decapods were represents a minor southward range extension examined, belonging to 39 species in in the western Atlantic, from Itapuã Beach, the following infraorders: Stenopodidea Salvador (Coelho, 1969) to Taipús de Fora (family Spongicolidae), Caridea (families Beach, Maraú. Palaemonidae, Alpheidae, Hippolytidae, and Processidae), Axiidea (family Callianassidae), Infraorder Caridea Dana, 1852 Gebiidea (family Upogebiidae), Anomura Superfamily Palaemonoidea Rafinesque, 1815 (family Porcellanidae), and Brachyura Family Palaemonidae Rafinesque, 1815 (families Majidae, Pilumnidae, Domeciidae, Subfamily Pontoniinae Kingsley, 1879 Panopeidae, and Grapsidae). The families Cuapetes americanus (Kingsley, 1878) Alpheidae and Porcellanidae were most prominently represented, with 14 and 9 species Material examined: 3 f (1 ovf ), e respectively. A total of 19 and 32 species were 22.III.2011, Santa Cruz Cabrália, Coroa obtained from dead portions of M. alcicornis Vermelha Beach, coll. P.S. Santos, G.O. and fallen dead-coral rubble, respectively. Soledade and A.O. Almeida, salinity: 32 p.s.u., on dead coral rubble, UESC 1412; 1 Taxonomy ovf, 22.III.2011, Santa Cruz Cabrália, Coroa Order Decapoda Latreille, 1802 Vermelha Beach, coll. P.S. Santos, G.O. Suborder Pleocyemata Burkenroad, 1963 Soledade and A.O. Almeida, salinity: 36 p.s.u., Infraorder Stenopodidea Spence Bate, 1888 on dead coral rubble, UESC 1413; 2 m, 5 f Family Spongicolidae Schram, 1986 (4 ovf ), 19.V.2011, Cairú, Boipeba Island, Microprosthema semilaeve (von Martens, Tassimirim Beach, coll. P.S. Santos, G.O. 1872) (Fig. 3A) Soledade and A.O. Almeida, salinity: 31 p.s.u., on dead coral rubble, UESC 1419; 4 m, 7 f (5 Material examined: 1 f, 31.VII.2011, ovf ), 20.V.2011, Cairú, Boipeba Island, Moreré Beach, coll. P.S. Santos, G.O. Soledade and Maraú, Taipús de Fora Beach, coll. P.S. Santos, A.O. Almeida, salinity: 38 p.s.u., on dead coral G.O. Soledade and A.O. Almeida, salinity: 38 rubble, UESC 1436; 1 m, 1 ovf, 30.VII.2011, p.s.u., on dead coral rubble, UESC 1477. Maraú, Taipús de Fora Beach, coll. P.S. Santos, Distribution: Western Atlantic: Bahamas, G.O. Soledade and A.O. Almeida, salinity: 38 southern Florida, West Indies, northern South p.s.u., on dead coral rubble, UESC 1466; 2 America, and Brazil (Fernando de Noronha, m, 6 f (4 ovf ), 31.VII.2011, Maraú, Taipús de Pernambuco, and Bahia) (Coelho and Ramo- Fora Beach, coll. P.S. Santos, G.O. Soledade Porto, 1998; Coelho et al., 2006). and A.O. Almeida, salinity: 38 p.s.u., on dead Remarks: Microprosthema semilaeve is a coral rubble, UESC 1475. small stenopodidean shrimp with a few records Distribution: Western Atlantic: North from Brazil (Pocock, 1890, as Stenopusculus Carolina to western Gulf of Mexico, West spinosus Pocock, 1890; Coelho, 1969; Coelho Indies, Colombia, Venezuela, and Brazil (Atol et al., 2006). Illustrations (line drawings or das Rocas, seamounts of North Brazilian Chain, photographs) of Brazilian material had not and from Amapá to São Paulo) [Holthuis, been previously provided. The color pattern of 1951, as Periclimenes (Harpilius) americanus; the female examined here agrees in part with Grajal and Laughlin, 1984, as P. americanus; that described by Manning (1961) (Fig. 3A). Williams, 1984, as P. americanus; Ramos-Porto It has been collected on coral reefs and other and Coelho, 1998, as P. americanus]. rocky bottoms, and on sand flats, sometimes Remarks: Frequently found on fouling studded with boulders (Manning, 1961; organisms on the surface of coral rubble and Coelho, 1969; Chace, 1972). Our specimen in more superficial crevices of coral rubble.
Nauplius 20(2): 145-169, 2012 149 Figure 3. Decapod crustaceans collected on dead coral on the coast of the state of Bahia, Brazil. (A) Microprosthema semilaeve (von Martens, 1872) (Stenopodidae). (B) Alpheus bouvieri A. Milne-Edwards, 1878 (Alpheidae). (C) Alpheus carlae Anker, 2012 (Alpheidae). (D) Alpheus cristulifrons Rathbun, 1900 (Alpheidae). (E) Alpheus formosus Gibbes, 1850 (Alpheidae). (F) Alpheus intrinsecus Spence Bate, 1888 (Alpheidae). (G) Alpheus nuttingi (Schmitt, 1924) (Alpheidae). (H) Alpheus cf. packardii Kingsley, 1880 (Alpheidae). (I) Alpheus cf. paracrinitus Miers, 1881 (Alpheidae). (J) Alpheus peasei (Armstrong, 1940) (Alpheidae).
150 Santos et al.: Decapods on dead coral on the coast of Bahia, Brazil Reported on various kinds of substrata in Florida, Puerto Rico, Jamaica, Belize, Panama, southern Bahia (Almeida et al., 2012). Grajal Venezuela, French Guyana, and Brazil (Ceará and Laughlin (1984) observed C. americanus to São Paulo) (Anker, 2012). (as Periclimenes americanus) in dead portions Remarks: Alpheus carlae belongs to the of corals Acropora prolifera (Lamarck, 1816) large A. armillatus H. Milne-Edwards, 1837 and A. cervicornis (Lamarck, 1816), and Young species complex (Anker, 2012). It has been (1986) recorded the species on dead parts of recorded in various types of habitats and Mussismilia harttii (Verrill, 1868), M. hispida substrata from the intertidal to shallow subtidal (Verrill, 1902), and Siderastrea stellata (Verrill, (0–3 m), including under coral rubble (Anker, 1868). 2012). Part of the material referred from southern Bahia as A. cf. armillatus correspond Superfamily Alpheoidea Rafinesque, 1815 to A. carlae (Almeida et al., 2012). Family Alpheidae Rafinesque, 1815 Alpheus bouvieri A. Milne-Edwards, 1878 Alpheus cristulifrons Rathbun, 1900 (Fig. 3D) (Fig. 3B) Material examined: 3 m, 3 ovf, Material examined: 1 m, 20.V.2011, 22.III.2011, Santa Cruz Cabrália, Coroa Cairú, Boipeba Island, Moreré Beach, coll. Vermelha Beach, coll. P.S. Santos, G.O. P.S. Santos, G.O. Soledade and A.O. Almeida, Soledade and A.O. Almeida, salinity: 36 p.s.u., salinity: 38 p.s.u., on dead coral rubble, UESC on dead portions of M. alcicornis, UESC 1416; 1437; 1 ovf, 25.IX.2011, Mutá Beach, Porto 6 m, 8 f (5 ovf ), 19.V.2011, Cairú, Boipeba Seguro, coll. P.S. Santos, G.O. Soledade and Island, Tassimirim Beach, coll. P.S. Santos, A.G.L.M. Pedra, salinity: 40 p.s.u., on dead G.O. Soledade and A.O. Almeida, salinity: 31 coral rubble, UESC 1504. p.s.u., on dead portions of M. alcicornis, UESC Distribution: Western Atlantic: 1431; 3 m, 3 ovf, 25.IX.2011, Porto Seguro, Bermuda, Florida, West Indies, Panama, and Mutá Beach, coll. P.S. Santos, G.O. Soledade Brazil (Fernando de Noronha, Ceará to Rio and A.G.L.M. Pedra, salinity: 40 p.s.u., on Grande do Sul). Central Atlantic: Ascension dead portions of M. alcicornis, UESC 1500. Island. Eastern Atlantic: Cape Verde, Senegal Distribution: Western Atlantic: Florida, to Gulf of Guinea and Congo-Brazzaville Gulf of Mexico, West Indies, Central America, (Crosnier and Forest, 1966; Chace, 1972; northern South America, and Brazil (Atol Christoffersen, 1979; 1998; Manning and das Rocas, Fernando de Noronha, and from Chace, 1990; Anker et al., 2009a). Rio Grande do Norte to Rio de Janeiro) Remarks: Alpheus bouvieri is commonly (Christoffersen, 1998; Anker et al., 2008a). found under rocks or in crevices of rocks and Remarks: Alpheus cristulifrons is typically rubble, more rarely on sabellariid reefs, and found in hard substrates (dead and living also on sand and sand-mud bottoms (Anker et portions of several corals, coral rubble, al., 2009a). Almeida et al. (2012) reported the concretions of coralline algae, sabellariid species in crevices of coral rubble in southern polychate reefs, bryozoans) and occasionally in Bahia. sponges (Grajal and Laughlin, 1984; Young, 1986; Moreno-Forero et al., 1998; Anker et Alpheus carlae Anker, 2012 (Fig. 3C) al., 2008a). In Bahia, Almeida et al. (2012) recorded the species on coral rubble and in Material examined: 2 f, 20.V.2011, the present survey we collected A. cristulifrons Cairú, Boipeba Island, Moreré Beach, coll. in male/female pairs on several occasions on P.S. Santos, G.O. Soledade and A.O. Almeida, dead portions in live position of M. alcicornis. salinity: 38 p.s.u., on dead coral rubble, UESC It is not considered a boring species, but it 1435. is capable of excavating or enlarging small Distribution: Western Atlantic: Southern natural cavities using its major claw (Anker et
Nauplius 20(2): 145-169, 2012 151 al., 2008a). coll. P.S. Santos, G.O. Soledade and A.O. Almeida, salinity: 38 p.s.u., on dead coral Alpheus formosus Gibbes, 1850 (Fig. 3E) rubble, UESC 1480. Distribution: Western Atlantic: Puerto Material examined: 1 ovf, 21.III.2011, Rico to Brazil (Piauí to Santa Catarina). Santa Cruz Cabrália, Coroa Vermelha Beach, Eastern Atlantic: Western Sahara to Gabon coll. P.S. Santos, G.O. Soledade and A.O. (Crosnier and Forest, 1966; Christoffersen, Almeida, salinity: 32 p.s.u., on dead coral 1979). rubble, UESC 1415; 2 m, 6 f, 19.V.2011, Remarks: Alpheus intrinsecus has been Cairú, Boipeba Island, Tassimirim Beach, coll. reported in several types of soft bottoms, such P.S. Santos, G.O. Soledade and A.O. Almeida, as mud, clay, sand, sand with gorgonians, salinity: 31 p.s.u., on dead coral rubble, UESC Halodule beds, coarse sand with shells, 1417; 6 m, 8 f, 20.V.2011, Cairú, Boipeba and on calcareous algae, from 0 to 40 m Island, Moreré Beach, coll. P.S. Santos, G.O. (Christoffersen, 1979; Almeida et al., 2006). Soledade and A.O. Almeida, salinity: 38 p.s.u., Our material was obtained in crevices of coral on dead coral rubble, UESC 1434; 3 m, 3 f rubble, which is, as far as we know, a previously (1 ovf ), 30.VII.2011, Maraú, Taipús de Fora unreported habitat for the species. Beach, coll. P.S. Santos, G.O. Soledade and A.O. Almeida, salinity: 38 p.s.u., on dead Alpheus nuttingi (Schmitt, 1924) (Fig. 3G) coral rubble, UESC 1468; 1 m, 2 f (1 ovf ), 31.VII.2011, Maraú, Taipús de Fora Beach, Material examined: 1 f, 30.VII.2011, P.S. Santos, G.O. Soledade and A.O. Almeida, Maraú, Taipús de Fora Beach, coll. P.S. Santos, salinity: 38 p.s.u., on dead coral rubble, UESC G.O. Soledade and A.O. Almeida, salinity: 38 1474; 1 m, 1 ovf, 01.VIII.2011, Maraú, p.s.u., on dead coral rubble, UESC 1463; 1 Algodões Beach, coll. P.S. Santos, G.O. f, 31.VII.2011, Maraú, Taipús de Fora Beach, Soledade and A.O. Almeida, salinity: 38 p.s.u., coll. P.S. Santos, G.O. Soledade and A.O. on dead coral rubble, UESC 1494. Almeida, salinity: 38 p.s.u., on dead coral, Distribution: Western Atlantic: UESC 1478. Bermuda, North Carolina to Brazil (Atol das Distribution: Western Atlantic: southern Rocas, Fernando de Noronha, and from Ceará Florida, southwestern Gulf of Mexico, West to São Paulo) (Christoffersen, 1998; Anker et Indies to Brazil (Ceará to Santa Catarina) al., 2008b). (Coelho et al., 2006; Anker et al., 2007). Remarks: Commonly found in various Remarks: Alpheus nuttingi is common on types of hard substrata, including dead and sandy bottoms with abundant coral rubble and living portions of coral and coral rubble rocks, in crevices of coral rocks, on sabellariid (Young, 1986; Castro et al., 2006; Anker et polychaete reefs, and in clumps of Halimeda al., 2008b). Castro et al. (2006) reported A. (Anker et al., 2007); therefore its occurrence formosus on living colonies of M. alcicornis in in coral rubble was not unexpected. In Brazil, Colombia, but we have not found the species in the species is known from Ceará to Santa dead portions of this coral in our sampling. A Catarina states, but there are no previous previous record on coral rubble from southern records from the state of Bahia, filling a gap in Bahia was provided by Almeida et al. (2012), the distribution (Coelho et al., 2006; Anker et where the species is apparently very abundant al., 2007). in this kind of microhabitat. Alpheus cf. packardii Kingsley, 1880 (Fig. 3H) Alpheus intrinsecus Spence Bate, 1888 (Fig. Material examined: 1 m, 2 ovf, 3F) 30.VII.2011, Maraú, Taipús de Fora Beach, coll. P.S. Santos, G.O. Soledade and A.O. Almeida, Material examined: 2 m, 4 f (1 ovf ), salinity: 38 p.s.u., on dead coral rubble, UESC 31.VII.2011, Maraú, Taipús de Fora Beach, 1464; 1 m, 2 f (1 ovf ), 31.VII.2011, Maraú,
152 Santos et al.: Decapods on dead coral on the coast of Bahia, Brazil Taipús de Fora Beach, coll. P.S. Santos, G.O. 30.VII.2011, Maraú, Taipús de Fora Beach, Soledade and A.O. Almeida, salinity: 38 p.s.u., coll. P.S. Santos, G.O. Soledade and A.O. on dead coral rubble, UESC 1479. Almeida, salinity: 38 p.s.u., on dead coral Distribution: Western Atlantic: rubble, UESC 1462; 2 m, 3 f (2 ovf ), Bermuda, Virginia to South Carolina, Florida, 01.VIII.2011, Maraú, Algodões Beach, coll. Gulf of Mexico, Bahamas, Mexico (Quintana P.S. Santos, G.O. Soledade and A.O. Almeida, Roo and Yucatan), West Indies, Venezuela, and salinity: 38 p.s.u., on dead coral rubble, UESC Brazil (Atol das Rocas, Fernando de Noronha, 1493. and from Amapá to São Paulo) (Christoffersen, Distribution: Western Atlantic: Bermuda 1979; 1998, as A. normanni Kingsley, 1878; and Florida Keys to Tobago, and westward to Rodríguez, 1980, as A. normanni; Martínez- Providencia Island and the Yucatan Peninsula Iglesias et al., 1996, as A. normanni). (Chace, 1972; Rodríguez, 1980). Remarks: Alpheus packardii is a species Remarks: Alpheus peasei has been complex (Almeida et al., 2012; A. Anker, pers. reported from Bermuda and the Florida comm.). It has been reported in crevices of Keys to Tobago (Chace, 1972; Rodríguez, coral rubble from southern Bahia (Almeida et 1980). The present record is the first from the al., 2012). southwestern Atlantic, significantly enlarging the southern range of this alpheid and Alpheus cf. paracrinitus Miers, 1881 (Fig. 3I) creating a huge gap in the species distribution, Material examined: 1 m, 3 ovf, including the Guyanas and northern and most 30.VII.2011, Maraú, Taipús de Fora Beach, of northeastern Brazil. The presently known coll. P.S. Santos, G.O. Soledade and A.O. distribution of A. peasei suggests an Antillean Almeida, salinity: 38 p.s.u., on dead coral disjunct distribution for this species, similar rubble, UESC 1461. to some other western Atlantic decapods (see Distribution: Western Atlantic: Coelho and Ramos 1972; Melo 1985). Alpheus Bermuda, West Indies, Panama, and Brazil peasei has been collected in interstices of rocks (Paraíba and Espírito Santo). Central Atlantic: and dead coral and on sponges (Chace, 1972; Ascension Island. Eastern Atlantic: Cape Verde Rodríguez, 1980) and polychaete tubes, from to Gulf of Guinea and Angola. Eastern Pacific the intertidal to 25 m (Martínez-Iglesias et al., and Indo-West Pacific (Crosnier and Forest, 1996). In this study, the species was obtained 1966; Chace, 1972; 1988; Banner and Banner, in shallow pools in crevices of coral rubble. 1982; Kim and Abele, 1988; Manning and The color pattern of the Bahian material agrees Chace, 1990; Christoffersen, 1998). with that observed in the Caribbean (A. Anker, Remarks: Alpheus paracrinitus is a species pers. comm.). complex (Almeida et al., 2012; A. Anker, pers. comm.). Young (1986) reported the species on Alpheus cf. rostratus W. Kim and Abele, 1988 dead portions of the corals Mussismilia hispida (Fig. 4A) and Siderastrea stellata. However, because A. paracrinitus is a complex, records of this species Material examined: 2 m, 4 f, 21.III.2011, must be considered with care (see Almeida et Santa Cruz Cabrália, Coroa Vermelha al., 2012). It has been reported in crevices of Beach, P.S. Santos, G.O. Soledade and A.O. coral rubble from southern Bahia (Almeida et Almeida, salinity: 32 p.s.u., on dead coral al., 2012). rubble, UESC 1409; 3 f (1 ovf ) 22.III.2011, Santa Cruz Cabrália, Coroa Vermelha Beach, Alpheus peasei (Armstrong, 1940) (Fig. 3J) coll. P.S. Santos, G.O. Soledade and A.O. Almeida, salinity: 36 p.s.u., on dead portions Material examined: 1 m, 1 ovf, of M. alcicornis, UESC 1410; 5 m, 6 f (5 ovf ),
Nauplius 20(2): 145-169, 2012 153 Figure 4. Decapod crustaceans collected on dead coral on the coast of the state of Bahia, Brazil. (A) Alpheus cf. rostratus W. Kim and Abele, 1988 (Alpheidae). (B) Alpheus simus Guérin-Méneville, 1855 (Alpheidae). (C-D) Color patterns observed for species of the Synalpheus brevicarpus (Herrick, 1891) complex (Alpheidae). (E) Synalpheus cf. fritzmuelleri Coutière, 1909 (Alpheidae). (F) Synalpheus scaphoceris Coutière, 1910 (Alpheidae). (G) Corallianassa hartmeyeri Schmitt, 1935 (Callianassidae). (H) Pachycheles riisei (Stimpson, 1858) (Porcellanidae). (I) Petrolisthes marginatus Stimpson, 1859 (Porcellanidae).
154 Santos et al.: Decapods on dead coral on the coast of Bahia, Brazil 01.VIII.2011, Maraú, Algodões Beach, coll. Cortes, 1985; Moreno-Forero et al., 1998, as P.S. Santos, G.O. Soledade and A.O. Almeida, Thunor simus; Bezerra and Almeida, 2008). salinity: 38 p.s.u., on dead coral rubble, UESC It is common in suitable habitats in the 1490; 4 m, 4 f (2 ovf ), 30.VII.2011, Maraú, Caribbean (A. Anker, pers. comm.). However, Taipús de Fora Beach, coll. P.S. Santos, G.O. in Brazil, A. simus is known based on only Soledade and A.O. Almeida, salinity: 38 p.s.u., two records. Christoffersen (1979, as Thunor on dead coral rubble, UESC 1465. rathbunae) recorded the species from Abrolhos Distribution: Alpheus cf. rostratus: Archipelago, and Bezerra and Almeida (2008) Western Atlantic: Brazil (Bahia) (Almeida et recorded it from Rio Grande do Norte. The al., 2012). Alpheus rostratus: Eastern Pacific: material reported by Christoffersen (1979) Gulf of California to Colombia (Kim and was obtained between 2–5 m depth, on sand Abele, 1988; Ramos, 1995). and calcareous algae bottoms; and the material Remarks: This species belongs to the A. reported by Bezerra and Almeida (2008) was paracrinitus complex, based on morphology obtained between 3–4 m, on M. alcicornis. and color pattern (Almeida et al., 2012; A. No other details on the species habitat were Anker, pers. comm.). It was recently recorded provided by the latter authors. At Coroa from southern Bahia for the first time, Vermelha Beach, we found A. simus living although with no report from coral rubble in endolithically in galleries constructed in the that region (Almeida et al., 2012), where it is M. alcicornis skeleton (Fig. 2C). These galleries apparently very abundant. Additionally, we occurred in both dead and living parts of the observed this species on the coral Mussismilia coral. We also observed perforations on the harttii (1 ovf, 20.III.2011, Porto Seguro, Mutá coral skeleton, connecting the gallery to the Beach, UESC 1408). outside. These perforations resemble the sieve pores or plates such as those observed in the Alpheus simus Guérin-Méneville, 1855 [in habitats of endolithic alpheids, including A. Guérin-Méneville, 1855–1856] (Fig. 4B) simus in the Caribbean (Cortes, 1985; Fischer and Meyer, 1985; Kropp, 1987; Werding, Material examined: 1 m, 1 f, 22.III.2011, 1990). By means of these plates, the shrimp Santa Cruz Cabrália, Coroa Vermelha Beach, communicate with the environment outside P.S. Santos, G.O. Soledade and A.O. Almeida, their habitation, extending the second chelate salinity: 36 p.s.u., on dead portions of M. pereopods through the perforations to pick up alcicornis, UESC 1411; 1 f, 25.IX.2011, Porto debris and take it into the galleries (Kropp, Seguro, Mutá Beach, coll. P.S. Santos, G.O. 1987; Werding, 1990). Soledade and A.G.L.M. Pedra, salinity: 40 p.s.u., on dead portions of M. alcicornis, UESC Synalpheus cf. brevicarpus (Herrick, 1891) 1503. (Figs. 4C, D) Distribution: Western Atlantic: Florida, Yucatan, West Indies, Central America, Material examined: 1 f, 20.III.2011, northern South America, and Brazil (Rio Porto Seguro, Mutá Beach, coll. P.S. Santos, Grande do Norte and Bahia) [Chace, 1972, G.O. Soledade and A.O. Almeida, salinity: 39 as Thunor rathbunae (Schmitt, 1924); p.s.u., on dead portions of M. alcicornis, UESC Christoffersen, 1979, as T. rathbunae; Bezerra 1403; 2 f, 22.III.2011, Santa Cruz Cabrália, and Almeida, 2008]. Coroa Vermelha Beach, coll. P.S. Santos, Remarks: The rock-boring snapping G.O. Soledade and A.O. Almeida, salinity: shrimp A. simus is an inhabitant of shallow- 36 p.s.u., on M. alcicornis, UESC 1404; 1 f, water hard bottoms such as coral reefs and 01.VIII.2011, Maraú, Algodões Beach, coll. coral rock bottoms, crevices of coral rocks P.S. Santos, G.O. Soledade and A.O. Almeida, and rubble, and also in dead portions of salinity: 38 p.s.u., on dead coral rubble, UESC living corals (Grajal and Laughlin, 1984; 1497; 2 nov, 1 ovf, 31.VII.2011, Maraú,
Nauplius 20(2): 145-169, 2012 155 Taipús de Fora Beach, coll. P.S. Santos, G.O. Island, Moreré Beach, coll. P.S. Santos, G.O. Soledade and A.O. Almeida, salinity: 38 p.s.u., Soledade and A.O. Almeida, salinity: 38 p.s.u., on dead coral rubble, UESC 1481; 2 nov, 1 ovf, on dead coral rubble, UESC 1433; 1 nov, 1 01.VIII.2011, Maraú, Algodões Beach, coll. ovf, 31.VII.2011, Maraú, Taipús de Fora P.S. Santos, G.O. Soledade and A.O. Almeida, Beach, coll. P.S. Santos, G.O. Soledade and salinity: 38 p.s.u., on dead coral rubble, UESC A.O. Almeida, salinity: 38 p.s.u., on dead coral 1496; 4 nov, 25.IX.2011, Porto Seguro, Mutá rubble, UESC 1473; 3 nov, 2 ovf, 01.VIII.2011, Beach, coll. P.S. Santos, G.O. Soledade and Maraú, Algodões Beach, coll. P.S. Santos, G.O. A.G.L.M. Pedra, salinity: 40 p.s.u., on dead Soledade and A.O. Almeida, salinity: 38 p.s.u., portions of M. alcicornis, UESC 1502. on dead coral rubble, UESC 1495; 21 nov, 10 Distribution: Western Atlantic: ovf, 25.IX.2011, Porto Seguro, Mutá Beach, Bermuda, Florida, Bahamas, West Indies, coll. P.S. Santos, G.O. Soledade and A.G.L.M. Panama, and Brazil (Ceará to Rio Grande do Pedra, salinity: 40 p.s.u., on dead portions of Sul) (Christoffersen, 1979; 1998; Bezerra and M. alcicornis, UESC 1499; 1 nov, 25.IX.2011, Coelho, 2006). The eastern Pacific records Porto Seguro, Mutá Beach, coll. P.S. Santos, correspond to S. digueti Coutière, 1909 G.O. Soledade and A.G.L.M. Pedra, salinity: (which also corresponds to multiple species) 40 p.s.u., on dead coral rubble, UESC 1501. (A. Anker, pers. comm.). Distribution: Western Atlantic: Remarks: Synalpheus brevicarpus is a Bermuda, Carolinas, Florida, northern Gulf of species complex including S. brevicarpus sensu Mexico (Texas), Mexico (Veracruz, Quintana Herrick, 1891, S. brevicarpus guerini Coutière, Roo), Colombia (Providencia), West Indies, 1909, and several undescribed species (A. Venezuela, and Brazil (São Pedro and São Paulo Anker, pers comm.). In the study area, two Archipelago, Pernambuco to Santa Catarina). distinct color patterns of S. cf. brevicarpus Central Atlantic: Ascension and Saint Helena indicate the existence of at least two species Islands. Records from the eastern Pacific (e.g., (Figs. 4C, D). Both species are apparently Tres Marías Archipelago, Mexico) refer to other very common, either on dead portions of M. species (Christoffersen, 1979; 1998; Holthuis alcicornis or in coral rubble. et al., 1980; Manning and Chace, 1990; A. Anker, pers. comm.). Synalpheus fritzmuelleri Coutière, 1909 Remarks: Species found in various types (Fig. 4E) of substrata in southern Bahia (Almeida et al., 2012), and, apparently, very common in Material examined: 7 nov, 2 ovf, 2 ni, dead coral in the study areas. The occurrence 20.III.2011, Porto Seguro, Mutá Beach, coll. of S. fritzmuelleri in pieces of dead coral was P.S. Santos, G.O. Soledade and A.O. Almeida, documented by Grajal and Laughlin (1984), salinity: 39 p.s.u., on dead portions of M. Young (1986), and Moreno-Forero (1998). alcicornis, UESC 1405; 4 nov, 22.III.2011, Additionally, we observed this species on the Santa Cruz Cabrália, Coroa Vermelha Beach, coral Mussismilia harttii (1 nov, 20.III.2011, coll. P.S. Santos, G.O. Soledade and A.O. Porto Seguro, Mutá Beach, UESC 1407), as Almeida, salinity: 36 p.s.u., on dead portions of documented by Young (1986). M. alcicornis, UESC 1406; 8 nov, 19.V.2011, Cairú, Boipeba Island, Tassimirim Beach, coll. Synalpheus scaphoceris Coutière, 1910 P.S. Santos, G.O. Soledade and A.O. Almeida, (Fig. 4F) salinity: 31 p.s.u., on dead coral rubble, UESC 1418; 8 nov, 19.V.2011 Cairú, Boipeba Island, Material examined: 1 nov, 1 ovf, Tassimirim Beach, coll. P.S. Santos, G.O. 01.VIII.2011, Maraú, Algodões Beach, coll. Soledade and A.O. Almeida, salinity: 31 p.s.u., P.S. Santos, G.O. Soledade and A.O. Almeida, on dead portions of M. alcicornis, UESC salinity: 38 p.s.u., on dead coral rubble, UESC 1432; 8 nov, 3 ovf, 20.V.2011, Cairú, Boipeba 1489; 1 nov, 25.IX.2011, Porto Seguro, Mutá
156 Santos et al.: Decapods on dead coral on the coast of Bahia, Brazil Beach, coll. P.S. Santos, G.O. Soledade and North Brazilian Chain, Fernando de Noronha, A.G.L.M. Pedra, salinity: 40 p.s.u., on dead Ceará to São Paulo). Central Atlantic: portions of M. alcicornis, UESC 1516. Ascension Island (Manning and Chace, 1990; Distribution: Western Atlantic: Florida, Christoffersen, 1998; Coelho Filho, 2006). Gulf of Mexico, West Indies, Venezuela, and Remarks: Thor manningi can be found Brazil (Paraíba, Espírito Santo, Rio de Janeiro, on living and dead corals and several other and São Paulo) (Chace, 1956, as Synalpheus substrata (Chace, 1972; Grajal and Laughlin, townsendi scaphoceris; Christoffersen, 1979; 1984; Young, 1986). Almeida et al. (2012) Dardeau, 1986). recorded the species from Bahia, in concretions Remarks: Synalpheus scaphoceris is found of calcareous algae. on both living and dead corals (Dardeau, 1986). The species is recorded for the first time Superfamily Processoidea Ortmann, 1896 from Bahia, filling a gap in its distribution. Family Processidae Ortmann, 1896 Processa fimbriata Manning and Chace, 1971 Family Hippolytidae Spence Bate, 1888 Lysmata cf. intermedia (Kingsley, 1878) Material examined: 1 f, 19.V.2011, Cairú, Boipeba Island, Tassimirim Beach, coll. Material examined: 1 ovf, 30.VII.2011, P.S. Santos, G.O. Soledade and A.O. Almeida, Maraú, Taipús de Fora Beach, coll. P.S. Santos, salinity: 31 p.s.u., on dead coral rubble, UESC G.O. Soledade and A.O. Almeida, salinity: 1420. 38 p.s.u., on dead coral rubble, UESC 1467; Distribution: Western Atlantic: North 2 ovf, 31.VII.2011, Maraú, Taipús de Fora Carolina, Florida, Gulf of Mexico, Yucatan, Beach, coll. P.S. Santos, G.O. Soledade and Bahamas, West Indies, and Brazil (Atol das A.O. Almeida, salinity: 38 p.s.u., on dead coral Rocas, and from Rio Grande do Norte to Rio rubble, UESC 1482. de Janeiro) (Christoffersen, 1979; 1998). Distribution: Western Atlantic: Florida Remarks: Processa fimbriata is also Keys to Trinidad and Tobago, Curaçao, reported from various types of substrata, and Brazil (Pernambuco to Rio de Janeiro) such as sponges, coral flats, and among coral- (Christoffersen, 1998; d’Udekem d’Acoz, encrusted rocks (Manning and Chace, 1971; 2000; Almeida et al., 2007). Chace, 1972). Remarks: Lysmata intermedia is a species complex (Anker et al., 2009b), and Infraorder Axiidea de Saint Laurent, 1979 the material examined here possibly belongs Family Callianassidae Dana, 1852 to a hitherto undescribed species (Almeida et Corallianassa hartmeyeri (Schmitt, 1935) al., 2012). Material from southern Bahia has (Fig. 4G) been collected on a reef, within crevices of calcareous algal concretions (Almeida et al., Material examined: 1 m, 31.VII.2011, 2012); here, we record the species in crevices Maraú, Taipús de Fora Beach, coll. P.S. Santos, of coral rubble. G.O. Soledade and A.O. Almeida, salinity: 38 p.s.u., on dead coral rubble, UESC 1476. Thor manningi Chace, 1972 Distribution: Western Atlantic: West Indies (Jamaica) and Brazil (Alagoas) (Coelho, Material examined: 2 ovf, 20.III.2011, 1997; Melo, 1999). Porto Seguro, Mutá Beach, coll. P.S. Santos, Remarks: Very poorly known species, G.O. Soledade and A.O. Almeida, salinity: described by Schmitt (1935) from Jamaica 39 p.s.u., on dead portions of M. alcicornis, based on holotype only, with no observations UESC 1414. regarding ecology. Manning and Chace Distribution: Western Atlantic: Bermuda, (1990) recorded the species from Ascension, North Carolina to Brazil (seamounts of the from burrows in sand in shallow tide pools
Nauplius 20(2): 145-169, 2012 157 and under a rock, and commented on some G.O. Soledade and A.O. Almeida, salinity: differences that they observed in relation to 39 p.s.u., on dead portions of M. alcicornis, the holotype. The only record from Brazil was UESC 1375; 4 f (1 ovf ), 22.III.2011, Santa provided by Coelho (1997) from Alagoas, Cruz Cabrália, Coroa Vermelha Beach, coll. with no illustrations, morphological account, P.S. Santos, G.O. Soledade and A.O. Almeida, or information regarding the type of substrata. salinity: 36 p.s.u., on dead portions of M. Subsequent listings (Melo, 1999; Coelho et al., alcicornis, UESC 1376; 1 ovf, 20.III.2011, 2007) are based on Coelho’s (1997) record. Porto Seguro, Mutá Beach, coll. P.S. Santos, The southern range limit of this species is G.O. Soledade and A.O. Almeida, salinity: 39 extended here from Alagoas to Taipús de Fora p.s.u., on dead coral rubble, UESC 1377; 1 f, Beach, Maraú. The material was attached to 19.V.2011, Cairú, Boipeba Island, Tassimirim the undersurface of a coral rubble fragment Beach, coll. P.S. Santos, G.O. Soledade and in a sandy-bottom pool (1–1.5 m). A revision A.O. Almeida, salinity: 31 p.s.u., on dead of Caribbean, Central Atlantic, and Brazilian coral rubble, UESC 1423; 2 m, 19.V.2011, material is desirable, because of the variation Cairú, Boipeba Island, Tassimirim Beach, coll. reported by Manning and Chace (1990) and P.S. Santos, G.O. Soledade and A.O. Almeida, the need to compare the Brazilian material salinity: 31 p.s.u., on dead portions of M. with other specimens. alcicornis, UESC 1425; 1 m, 01.VIII.2011, Maraú, Algodões Beach, coll. P.S. Santos, Infraorder Gebiidea de Saint Laurent, 1979 G.O. Soledade and A.O. Almeida, salinity: 38 p.s.u., on dead coral rubble, UESC 1491; 3 m, Family Upogebiidae Borradaile, 1903 1 f, 25.IX.2011, Porto Seguro, Mutá Beach, Pomatogebia operculata (Schmitt, 1924) P.S. Santos, G.O. Soledade and A.G.L.M. Pedra, salinity: 40 p.s.u., on dead portions of Material examined: 1 ovf, 25.IX.2011, M. alcicornis, UESC 1514. Porto Seguro, Mutá Beach, coll. P.S. Santos, Distribution: Western Atlantic: Central G.O. Soledade and A.G.L.M. Pedra, salinity: America, Colombia, Venezuela, and Brazil 40 p.s.u., on dead portions of M. alcicornis, (Maranhão to São Paulo) (Melo, 1999). UESC 1517. Remarks: Species found on various Distribution: Western Atlantic: Florida, types of substrata, including corals (Gore, Gulf of Mexico, Central America, northern 1982; Young, 1986; Veloso and Melo, 1993). South America, and Brazil (Ceará to Espírito A previous record in crevices of coral rubble Santo) (Melo, 1999). in southern Bahia was provided by Almeida Remarks: Pomatogebia operculata is et al. (2010). Additionally, we observed this reported as an inhabitant of massive living corals species on the coral Mussismilia harttii (1 m, in Saint Croix (Kleemann, 1984) and Jamaica 20.III.2011, Porto Seguro, Mutá Beach, UESC and Barbados (Scott, 1987), where specimens 1378), as also recorded by Young (1986). live in male-female pairs in ramifying galleries. Scott (1987) demonstrated that P. operculata Megalobrachium soriatum (Say, 1818) is capable of mechanical boring. However, the species inhabits coral rubble and rocks (Scott, Material examined: 1 f, 01.VIII.2011, 1987; this study) as well as living corals. Maraú, Algodões Beach, salinity: 38 p.s.u., on dead coral rubble, UESC 1492; 1 m, 1 Infraorder Anomura MacLeay, 1838 ovf, 25.IX.2011, Porto Seguro, Mutá Beach, Superfamily Galatheoidea Samouelle, 1819 coll. P.S. Santos, G.O. Soledade and A.G.L.M. Family Porcellanidae Haworth, 1825 Pedra, salinity: 40 p.s.u., on dead coral rubble, Megalobrachium roseum (Rathbun, 1900) UESC 1515; 1 f, 31.VII.2011, Maraú, Taipús Material examined: 1 m, 20.III.2011, de Fora Beach, salinity: 38 p.s.u., on dead coral Porto Seguro, Mutá Beach, coll. P.S. Santos, rubble, UESC 1484.
158 Santos et al.: Decapods on dead coral on the coast of Bahia, Brazil Distribution: Western Atlantic: North is found on various types of hard substrata, Carolina to Florida, Gulf of Mexico, Mexico, including corals (Young, 1986; Veloso and Central America, Colombia, Venezuela, and Melo, 1993). The species is apparently very Brazil (Ceará to São Paulo). Eastern Pacific: abundant in the microhabitats studied on the California to Panama (Melo, 1999; Lira et al., Bahia coast, where it was previously recorded 2001; Rodríguez et al., 2005). in crevices of coral rubble by Almeida et al. Remarks: Species found on various types (2010). of substrata, including corals (Young, 1986; Veloso and Melo, 1993). Additionally, we Pachycheles monilifer (Dana, 1852) recorded this species on the coral Mussismilia harttii (2 ovf, 20.III.2011, Porto Seguro, Mutá Material examined: 3 m, 2 f (1 ovf ), Beach, UESC 1379), as documented by Young 19.V.2011, Cairú, Boipeba Island, Tassimirim (1986). Beach, coll. P.S. Santos, G.O. Soledade and A.O. Almeida, salinity: 31 p.s.u., on dead coral Pachycheles greeleyi (Rathbun, 1900) rubble, UESC 1424. Distribution: Western Atlantic: Florida, Material examined: 5 f, 21.III.2011, Gulf of Mexico, West Indies, Venezuela, Santa Cruz Cabrália, Coroa Vermelha Beach, and Brazil (Rio Grande do Norte to Santa coll. P.S. Santos, G.O. Soledade and A.O. Catarina). Eastern Pacific: Ecuador (Melo, Almeida, salinity: 32 p.s.u., on dead coral 1999). rubble, UESC 1387; 1 m, 1 f, 22.III.2011, Remarks: Also known from various kinds Santa Cruz Cabrália, Coroa Vermelha Beach, of hard substrata, including corals (Veloso and coll. P.S. Santos, G.O. Soledade and A.O. Melo, 1993; Micheletti-Flores and Negreiros- Almeida, salinity: 36 p.s.u., on dead coral Fransozo, 1999; Nogueira, 2003). rubble, UESC 1388; 3 f (1 ovf ), 20.III.2011, Porto Seguro, Mutá Beach, coll. P.S. Santos, Pachycheles riisei (Stimpson, 1858) G.O. Soledade and A.O. Almeida, UESC (Fig. 4H) 1389, salinity: 39 p.s.u., on dead portions of M. alcicornis; 1 f, 21.III.2011, Santa Cruz Cabrália, Material examined: 1 m, 1 ovf, Coroa Vermelha Beach, coll. P.S. Santos, G.O. 31.VII.2011, Maraú, Taipús de Fora Beach, Soledade and A.O. Almeida, salinity: 32 p.s.u., coll. P.S. Santos, G.O. Soledade and A.O. on dead portions of M. alcicornis, UESC 1390; Almeida, salinity: 38 p.s.u., on dead coral 1 m, 2 ovf, 22.III.2011, Santa Cruz Cabrália, rubble, UESC 1488; 1 m, 1 ovf, 01.VIII.2011, Coroa Vermelha Beach, coll. P.S. Santos, G.O. Maraú, Algodões Beach, coll. P.S. Santos, G.O. Soledade and A.O. Almeida, salinity: 36 p.s.u., Soledade and A.O. Almeida, salinity: 38 p.s.u., on dead portions of M. alcicornis, UESC 1391; on dead coral rubble, UESC 1498. 1 m, 2 f (1 ovf ), 19.V.2011, Cairú, Boipeba Distribution: Western Atlantic: Florida, Island, Tassimirim Beach, coll. P.S. Santos, West Indies, Colombia, Venezuela, and Brazil G.O. Soledade and A.O. Almeida, salinity: (Fernando de Noronha, Trindade, and from 31 p.s.u., on dead portions of M. alcicornis, Paraíba to São Paulo) (Melo, 1999; Rodríguez UESC 1427; 6 m, 4 f (2 ovf ), 25.IX.2011, et al., 2005; Tagliafico et al., 2005; Lira et al., Porto Seguro, Mutá Beach, coll. P.S. Santos, 2007). G.O. Soledade and A.G.L.M. Pedra, salinity: Remarks: Pachycheles riisei is found on 40 p.s.u., on dead portions of M. alcicornis, hard substrata, including corals (Werding, UESC 1510. 1982; Young, 1986, as P. riiispi sic, misspelled; Distribution: Western Atlantic: Brazil Veloso and Melo, 1993). The present record is (Pará to Espírito Santo) (Melo, 1999). the first from Bahia, filling a gap in the species’ Remarks: The Brazilian endemic P. greeleyi distribution.
Nauplius 20(2): 145-169, 2012 159 Petrolisthes armatus (Gibbes, 1850) Distribution: Western Atlantic: North Carolina to Florida, Gulf of Mexico, West Material examined: 2 m, 1 f, 21.III.2011, Indies, northern South America, and Brazil Santa Cruz Cabrália, Coroa Vermelha Beach, (Trindade Island, and from Pará to Rio Grande coll. P.S. Santos, G.O. Soledade and A.O. do Sul). Eastern Atlantic: western coast of Almeida, salinity: 32 p.s.u., on dead coral Africa. Eastern Pacific: Gulf of California, and rubble, UESC 1385; 1 ovf, 22.III.2011, Santa from Costa Rica to Peru (Melo, 1999). Cruz Cabrália, Coroa Vermelha Beach, coll. Remarks: The species is present on living P.S. Santos, G.O. Soledade and A.O. Almeida, and dead corals, among other hard substrata salinity: 36 p.s.u., on dead coral rubble, UESC (Werding, 1982; Grajal and Laughlin, 1984; 1386; 1 m, 1 ovf, 25.IX.2011, Porto Seguro, Young, 1986; Castro et al., 2006). Most of our Mutá Beach, coll. P.S. Santos, G.O. Soledade material was obtained on dead portions of M. and A.G.L.M. Pedra, salinity: 40 p.s.u., on alcicornis colonies; however, we observed it on dead portions of M. alcicornis, UESC 1509. living colonies as well. Castro et al. (2006) also Distribution: Western Atlantic: North observed P. galathinus on living colonies of M. Carolina to Florida, Gulf of Mexico, West alcicornis, in the Colombian Caribbean. Indies, Colombia, Venezuela, and Brazil (Fernando de Noronha, and from Pará to Petrolisthes marginatus Stimpson, 1859 Santa Catarina). Eastern Atlantic: Senegal to (Fig. 4I) Angola. Central Atlantic: Ascension. Eastern Pacific: Gulf of California, Costa Rica, Material examined: 1 m, 1 ovf, Ecuador (Galapagos), and Peru (Rodríguez, 20.III.2011, Porto Seguro, Mutá Beach, coll. 1980; Barros et al., 1997a; Melo, 1999). Remarks: Petrolisthes armatus is found in P.S. Santos, G.O. Soledade and A.O. Almeida, highly diverse substrata, especially in estuaries. salinity: 39 p.s.u., on dead portions of M. It has also been reported on living and dead alcicornis, UESC 1374; 2 f (1 ovf ), 25.IX.2011, corals (Gore and Abele, 1976; Werding, 1982; Porto Seguro, Mutá Beach, coll. P.S. Santos, Veloso and Melo, 1993; Castro et al., 2006; G.O. Soledade and A.G.L.M. Pedra, salinity: Almeida et al., 2010). A previous record from 40 p.s.u., on dead portions of M. alcicornis, coral rubble in southern Bahia was provided UESC 1512. by Almeida et al. (2010). Distribution: Western Atlantic: Florida, Gulf of Mexico, Gulf of San Blas (Panama), Petrolisthes galathinus (Bosc, 1802) Puerto Rico, Barbados, northern South America, Trinidad and Tobago, and Brazil Material examined: 2 m, 20.III.2011, (Maranhão, Fernando de Noronha, and Porto Seguro, Mutá Beach, coll. P.S. Santos, Trindade Island). Central Atlantic: Ascension. G.O. Soledade and A.O. Almeida, salinity: Eastern Atlantic: Cape Verde to Annobon 39 p.s.u., on dead portions of M. alcicornis, (Manning and Chace, 1990; Ferreira, 2009). UESC 1373; 1 m, 19.V.2011, Cairú, Boipeba Remarks: Recorded from several types of Island, Tassimirim Beach, coll. P.S. Santos, bottom, including coral heads (Gore, 1983; G.O. Soledade and A.O. Almeida, salinity: 31 p.s.u., on dead portions of M. alcicornis, UESC Manning and Chace, 1990). The southernmost 1426; 1 m, 31.VII.2011, Maraú, Taipús de record in the Western Atlantic was provided by Fora Beach, salinity: 38 p.s.u., on dead coral Ferreira (2009) from Trindade Island, around rubble, UESC 1486; 4 m, 4 f, 25.IX.2011, 1,100 km from the Brazilian coast (20º30’S / Porto Seguro, Mutá Beach, coll. P.S. Santos, 29º18’W) (Clemente et al., 2006). Our record G.O. Soledade and A.G.L.M. Pedra, salinity: from Porto Seguro represents the presently 40 p.s.u., on dead portions of M. alcicornis, known southern limit for this species, if we UESC 1507. consider Brazilian coastal waters.
160 Santos et al.: Decapods on dead coral on the coast of Bahia, Brazil Petrolisthes rosariensis Werding, 1982 Venezuela, and Brazil (Fernando de Noronha, and from Maranhão to Rio Grande do Sul) Material examined: 4 m, 3 ovf, (Melo, 1996). 20.III.2011, Porto Seguro, Mutá Beach, coll. Remarks: Microphrys bicornutus is P.S. Santos, G.O. Soledade and A.O. Almeida, known from several kinds of hard substrata, salinity: 39 p.s.u., on dead coral rubble, UESC including dead coral (Powers, 1977; Grajal 1396; 2 m, 31.VII.2011, Maraú, Taipús and Laughlin, 1984; Almeida et al., 2010). We de Fora Beach, salinity: 38 p.s.u., on dead also recorded this species on dead portions of coral rubble, UESC 1483; 1 m, 2 f (1 ovf ), the coral Siderastrea stellata (1 m, 21.III.2011, 25.IX.2011, Porto Seguro, Mutá Beach, coll. Santa Cruz Cabrália, Coroa Vermelha Beach, P.S. Santos, G.O. Soledade and A.G.L.M. UESC 1397). Pedra, salinity: 40 p.s.u., on dead portions of M. alcicornis, UESC 1511. Mithraculus forceps (A. Milne-Edwards, 1875) Distribution: Western Atlantic: Central America, Colombia, and Brazil (Paraíba to Material examined: 1 m, 20.III.2011, Bahia) (Melo, 1999). Porto Seguro, Mutá Beach, coll. P.S. Santos, Remarks: Also present on living and dead G.O. Soledade and A.O. Almeida, salinity: corals, among other hard substrata (Werding, 39 p.s.u., on dead coral rubble, UESC 1371; 1982; Young, 1986; Moreno-Forero et al., 1 m, 2 ovf, 1 ni, 20.III.2011, Porto Seguro, 1998). We found this species on the coral Mutá Beach, coll. P.S. Santos, G.O. Soledade Mussismilia harttii (1 m, 2 f, 20.III.2011, and A.O. Almeida, salinity: 39 p.s.u., on dead Porto Seguro, Mutá Beach, UESC 1395), as portions of M. alcicornis, UESC 1372; 1 m, also observed by Young (1986). 19.V.2011, Cairú, Boipeba Island, Tassimirim Beach, coll. P.S. Santos, G.O. Soledade and Infraorder Brachyura Latreille, 1802 A.O. Almeida, salinity: 31 p.s.u., on dead Superfamily Majoidea Samouelle, 1819 coral rubble, UESC 1422; 1 f, 19.V.2011, Family Majidae Samouelle, 1819 Cairú, Boipeba Island, Tassimirim Beach, coll. Subfamily Mithracinae MacLeay, 1838 P.S. Santos, G.O. Soledade and A.O. Almeida, Microphrys bicornutus (Latreille, 1825) salinity: 31 p.s.u., on dead portions of M. alcicornis, UESC 1429; 1 m, 2 f, 30.VII.2011, Material examined: 1 ovf, 22.III.2011, Maraú, Taipús de Fora Beach, coll. P.S. Santos, Santa Cruz Cabrália, Coroa Vermelha G.O. Soledade and A.O. Almeida, salinity: 38 Beach, coll. P.S. Santos, G.O. Soledade and p.s.u., on dead coral rubble, UESC 1469; 1 m, A.O. Almeida, salinity: 36 p.s.u., on dead 31.VII.2011, Maraú, Taipús de Fora Beach, coral rubble, UESC 1398; 1 m, 2 f (1 ovf ), coll. P.S. Santos, G.O. Soledade and A.O. 21.III.2011, Santa Cruz Cabrália, Coroa Almeida, salinity: 38 p.s.u., on dead coral Vermelha Beach, coll. P.S. Santos, G.O. rubble, UESC 1487; 1 m, 25.IX.2011, Porto Soledade and A.O. Almeida, salinity: 32 Seguro, Mutá Beach, coll. P.S. Santos, G.O. p.s.u., on dead coral rubble, UESC 1399; 1 m, Soledade and A.O. Almeida, salinity: 40 p.s.u., 19.V.2011, Cairú, Boipeba Island, Tassimirim on dead portions of M. alcicornis, UESC 1506; Beach, coll. P.S. Santos, G.O. Soledade and 4 m, 1 f, 25.IX.2011, Porto Seguro, Mutá A.O. Almeida, salinity: 31 p.s.u., on dead Beach, coll. P.S. Santos, G.O. Soledade and coral rubble, UESC 1421; 1 m, 31.VII.2011, A.G.L.M. Pedra, salinity: 40 p.s.u., on dead Maraú, Taipús de Fora Beach, coll. P.S. Santos, coral rubble, UESC 1508. G.O. Soledade and A.O. Almeida, salinity: 38 Distribution: Western Atlantic: North p.s.u., on dead coral rubble, UESC 1485. Carolina to Florida, Gulf of Mexico, West Distribution: Western Atlantic: Indies, Venezuela, and Brazil (São Pedro and Bermuda, North Carolina to Florida, Gulf São Paulo Archipelago, Fernando de Noronha, of Mexico, Central America, West Indies, Atol das Rocas, and from Maranhão to Santa
Nauplius 20(2): 145-169, 2012 161 Catarina) (Holthuis et al., 1980; Melo, 1996; Rieger and Giraldi, 1996). Mithrax hemphilli Rathbun, 1892 Remarks: Known from various kinds of hard substrata, including living and dead Material examined: 2 m, 30.VII.2011, corals (Powers, 1977, as Mithrax forceps; Grajal Maraú, Taipús de Fora Beach, coll. P.S. Santos, and Laughlin, 1984, as Mithrax forceps; Young, G.O. Soledade and A.O. Almeida, salinity: 38 1986, as Mithrax forceps; Nogueira, 2003; p.s.u., on dead coral rubble, UESC 1471. Almeida et al., 2010). A previous record from Distribution: Western Atlantic: Florida, coral rubble in southern Bahia was provided West Indies, and Brazil (Atol das Rocas, and by Almeida et al. (2010). We also observed from Maranhão to Rio de Janeiro) (Melo, M. forceps on the coral Mussismilia harttii (3 1996). m, 20.III.2011, Porto Seguro, Mutá Beach, Remarks: Species found on various kinds UESC 1370). of hard bottoms, including on dead corals (Young, 1986; Almeida et al., 2010). Mithrax braziliensis Rathbun, 1892 Superfamily Pilumnoidea Samouelle, 1819 Material examined: 2 m, 2 f, 20.III.2011, Family Pilumnidae Samouelle, 1819 Porto Seguro, Mutá Beach, coll. P.S. Santos, Subfamily Pilumninae Samouelle, 1819 G.O. Soledade and A.O. Almeida, salinity: 39 Pilumnus dasypodus Kingsley, 1879 p.s.u., on dead portions of M. alcicornis, UESC Material examined: 1 m, 2 f, 20.III.2011, 1380; 1 f, 21.III.2011, Santa Cruz Cabrália, Porto Seguro, Mutá Beach, coll. P.S. Santos, Coroa Vermelha Beach, coll. P.S. Santos, G.O. G.O. Soledade and A.O. Almeida, salinity: Soledade and A.O. Almeida, salinity: 32 p.s.u., 39 p.s.u., on dead portions of M. alcicornis, on dead portions of M. alcicornis, UESC 1382; UESC 1393; 1 m, 2 f, 21.III.2011, Santa 1 m, 1 ni, 22.III.2011, Santa Cruz Cabrália, Cruz Cabrália, Coroa Vermelha Beach, coll. Coroa Vermelha Beach, coll. P.S. Santos, P.S. Santos, G.O. Soledade and A.O. Almeida, G.O. Soledade and A.O. Almeida, salinity: 36 salinity: 32 p.s.u., on dead coral rubble, UESC p.s.u., on dead coral rubble, UESC 1383; 1 m, 1394; 1 f, 30.VII.2011, Maraú, Taipús de Fora 20.III.2011, Porto Seguro, Mutá Beach, coll. Beach, coll. P.S. Santos, G.O. Soledade and P.S. Santos, G.O. Soledade and A.O. Almeida, A.O. Almeida, salinity: 38 p.s.u., on dead coral salinity: 39 p.s.u., on dead coral rubble, UESC rubble, UESC 1470; 9 m, 5 f, 25.IX.2011, 1384; 3 m, 2 ni, 19.V.2011, Cairú, Boipeba Porto Seguro, Mutá Beach, coll. P.S. Santos, Island, Tassimirim Beach, coll. P.S. Santos, G.O. Soledade and A.G.L.M. Pedra, salinity: G.O. Soledade and A.O. Almeida, salinity: 40 p.s.u., on dead portions of M. alcicornis, 31 p.s.u., on dead portions of M. alcicornis, UESC 1513. UESC 1430; 5 m, 14 f, 25.IX.2011, Porto Distribution: Western Atlantic: North Seguro, Mutá Beach, coll. P.S. Santos, G.O. Carolina to Florida, Gulf of Mexico, West Soledade and A.G.L.M. Pedra, salinity: 40 Indies, northern South America, and Brazil p.s.u., on dead coral rubble, UESC 1505. (Paraíba to Santa Catarina) (Melo, 1996). Distribution: Western Atlantic: Brazil Remarks: Pilumnus dasypodus is found (Piauí to São Paulo) (Melo, 1996; Dall’Occo on various kinds of hard substrata, including et al., 2004). dead corals (Powers, 1977; Young, 1986; Remarks: This endemic Brazilian species Almeida et al., 2010). is found on various kinds of hard bottoms, including dead corals (Young, 1986; Almeida Pilumnus reticulatus Stimpson, 1860 et al., 2010). During our sampling, we also collected this species on the coral Mussismilia Material examined: 1 m, 20.III.2011, harttii (3 f, 20.III.2011, Porto Seguro, Mutá Porto Seguro, Mutá Beach, coll. P.S. Santos, Beach, UESC 1381). G.O. Soledade and A.O. Almeida, salinity:
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