Pachycheles laevidactylus Ortmann, 1892

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 : 568

Pachycheles laevidactylus Ortmann, 1892

( Fig. 2D )

Pachycheles laevidactylus Ortmann, 1892: 266 , pl. 12, fig. 1.

Material examined. São Paulo, Brazil: 2 ♂, 1 ♀, CCDB 2968 , Ubatuba , Praia do Itaguá, colls. F. Mantelatto et al., ix.2010 ; 16 ♂, 7 ♀ ov, CCDB 4673 , Ubatuba , Praia do Itaguá, colls. F. Mantelatto et al., 16.x.2012 ; 1 ♀ ov, CCDB 5294 , Ubatuba , Praia do Itaguá, colls. F. Mantelatto et al., 16.x.2012 ; 1 ♀ ov, CCDB 5689 , Ubatuba , Praia do Itaguá, colls. F. Mantelatto et al., 16.x.2012 ; 1 ♂, 2 ♀, CCDB 6374 , Ubatuba , Enseada de Ubatuba, Praia do Itaguá, colls. T. Magalhães et al., 30.xi.2014 ; 5 ♂, 2 ♀ (1 ♀ ov), CCDB 4219 , Ubatuba , Praia Grande, colls. F. Mantelatto et al., 22.ii.2011 ; 1 ♀ ov, CCDB 4221 , Ubatuba , Praia Grande, colls. R. Costa et al., iv.2012 ; 1 ♂, 1 ♀ ov, CCDB 4216 , Ilhabela , Praia das Pedras Miúdas, coll. J. Gomes, 25.ii.2012 ; 1 ♂, 1 ♀ ov, CCDB 3075 , Guarujá , Praia da Guaiúba, colls. I. Leone et al., 22.x.2011 ; 16 ♂, 18 ♀ (17 ♀ ov), CCDB 4293 , Guarujá , Praia do Guaiúba, colls. I. Leone et al., 22.x.2011 ; 11 ♂, 10 ♀ (9 ♀ ov), CCDB 4292 , São Vicente , Praia Itararé, colls. I. Leone et al., 23.x.2011 ; 1 ♀ ov, CCDB 6708 , Cananéia , Ilha da Figueira, colls. F. Zara et al., 26.xi.2020 .

Distribution. Western Atlantic— Brazil (Maranhão, Pernambuco, Bahia, Espírito Santo, Rio de Janeiro, São Paulo, Paraná, Santa Catarina, Rio Grande do Sul), Uruguay, Argentina ( Coelho 1963; Bremec & Cazzaniga 1984; Silva et al. 1989; Werding et al. 2003; Coelho et al. 2007; Miranda et al. 2014; Ferreira & Melo 2016; Spivak et al. 2019).

Remarks. Pachycheles laevidactylus inhabits the intertidal region, in mussel beds, algae tufts, under rocks, associated with bryozoans, polychaetes ( Veloso & Melo 1993; Micheletti-Flores & Negreiros-Fransozo 1999; Miranda et al. 2014; Ferreira & Melo 2016) and on mussel farming ropes ( Macedo et al. 2012). In the original description of Pachycheles chubutensis, Boschi (1963) described the morphological similarity between the new species and Pachycheles laevidactylus (as Pachycheles haigae ). The validity of both as distinct species was confirmed by morphological and molecular analysis ( Miranda et al. 2014). Sequences accession numbers (GenBank): CCDB 2379—16S ( MF490160 ), COI ( MF490056 ) ( Mantelatto et al. 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).