Megalobrachium roseum ( Rathbun, 1900 )

Mantelatto, Fernando L., Miranda, Ivana, Vera-Silva, Ana L., Negri, Mariana, Buranelli, Raquel C., Terossi, Mariana, Magalhães, Tatiana, Costa, Rogério C., Zara, Fernando J. & Castilho, Antonio L., 2021, Checklist of decapod crustaceans from the coast of the São Paulo state (Brazil) supported by integrative molecular and morphological data: IV. Infraorder Anomura: Superfamilies Chirostyloidea, Galatheoidea, Hippoidea and Paguroidea, Zootaxa 4965 (3), pp. 558-600 : 566-567

Megalobrachium roseum ( Rathbun, 1900)

( Fig. 2B )

Porcellana rosea Rathbun, 1900: 148 , pl. 8, fig. 3

Material examined. Brazil, São Paulo: 1 ♂, 2 ♀ (1♀ ov), CCDB 5278 , Ubatuba, colls. F. Mantelatto et al., 16.x.2012 ; 1 ♀ ov, CCDB 6416 , Ubatuba, Enseada de Ubatuba, Praia do Itaguá , colls. T. Magalhães et al., 30.xi.2014 ; 1 ♂, CCDB 2854 , Ubatuba, Praia do Itaguá , colls. F. Mantelatto et al., 03.vii.2008 ; 7 ♂, 11 ♀ (7 ♀ ov), CCDB 5401 , Ubatuba, Praia do Itaguá , colls. F. Mantelatto et al., 22.ii.2011 ; 9 ♂, 10 ♀ (3 ♀ ov), CCDB 5297 , Ubatuba, Praia do Itaguá , colls. M. Negri et al., 11.ix.2013 ; 1 ♂, CCDB 1138 , Ubatuba, Praia do Lamberto , colls. F. Mantelatto et al., v.2002 ; 1 ♀, CCDB 2811 , Ubatuba, Ilha Anchieta, Praia do Leste , colls. F. Mantelatto & R. Biagi, v.2000 ; 4 ♂, 3 ♀, CCDB 2017 , Ilhabela, Praia do Engenho d’Água , colls. F. Mantelatto et al., vii.2006 ; 8 ♂, 5 ♀ (3 ♀ ov), CCDB 2019 , Ilhabela, Praia do Engenho d’Água , colls. F. Mantelatto et al., v.2007 ; 3 ♂, 3 ♀, CCDB 2108 , São Sebastião, Praia do Segredo , colls. F. Mantelatto et al., xi.2007 ; 1 ♂, 1 ♀, CCDB 3107 , São Sebastião, Praia do Segredo , colls. F. Mantelatto et al., 13.xi.2007 ; 1 ♀ ov, CCDB 6710 , Cananéia, Ilha da Figueira , colls. F. Zara et al., 26.xi.2020 .

Distribution. Western Atlantic— Panama, Martinique, Colombia, Venezuela, Suriname, Brazil (Maranhão, Ceará, Rio Grande do Norte, Paraíba, Pernambuco, Alagoas, Bahia, Espírito Santo, Rio de Janeiro, São Paulo) ( Coelho-Santos & Coelho 1994; Werding et al. 2003; Rodríguez et al. 2005; Coelho et al. 2007; Ferreira & Melo 2016).

Remarks. This species inhabits the intertidal region down to 50 m, on coral reefs and under rocks; found living associated with bryozoans, polychaetes and sponges ( Veloso & Melo 1993; Melo 1999; Micheletti-Flores & Negreiros-Fransozo 1999). Most of the specimens in São Paulo were collected with colonies of bryozoan S. errata . One specimen (CCDB 1138) was found associated to a crinoid (Echinodermata). Sequences accession numbers (GenBank): CCDB 2854—16S ( HM352468 ), CCDB 5297—COI ( MF490052 ) ( Mantelatto et al. 2011, 2018).

Figures

FIGURE 2. Family Porcellanidae. A) Megalobrachium mortenseni Haig, 1962 (CCDB 6709). B) Megalobrachium roseum (Rathbun, 1900) (CCDB 6710). C) Minyocerus angustus (Dana, 1852) (CCDB 5515). D) Pachycheles laevidactylus Ortmann, 1892 (CCDB 6708). E) Pachycheles monilifer (Dana, 1852) (CCDB 4901). F) Pachycheles riisei (Stimpson, 1859) (CCDB 4902). G) Petrolisthes armatus (Gibbes, 1850) (CCDB 5066). H) Petrolisthes galathinus (Bosc, 1802) (CCDB 4903). I) Porcellana sayana (Leach, 1820) (CCDB 5279). Animals from Brazil, São Paulo, Cananéia (A, B, D, I), Ubatuba (C, E, F–H). Sex: male (E–H), ovigerous female (A–D; I). Scale bars (mm): A, B, C—3; D—5; E, F—6; G—11; H—12; I—4. Photographs by João A. Pantaleão (A, B, D), R.C. Buranelli (C, E–I).