Pagurus brevidactylus (Stimpson, 1859)

(Fig. 5A)

Eupagurus brevidactylus Stimpson, 1859: 91 .

Material examined. Brazil, São Paulo: 1 ♂, CCDB 643, Ubatuba, 23°26ʹ13ʺS, 045°04ʹ08ʺW, coll. F. Mantelatto, 01.ii.1995 ; 1 ♀ ov, CCDB 642, Ubatuba, 23°26ʹ13ʺS, 045°04ʹ08ʺW, coll. F. Mantelatto, 01.ii.1995 ; 1 ♂, CCDB 641, Ubatuba, 23°26ʹ13ʺS, 045°04ʹ08ʺW, coll. F. Mantelatto, 01.iv.1995 ; 1 ♂, CCDB 640, Ubatuba, 23°26ʹ13ʺS, 045°04ʹ08ʺW, coll. F. Mantelatto, 01.iv.1995 ; 1 ♀ ov, CCDB 645, Ubatuba, 23°26ʹ13ʺS, 045°04ʹ08ʺW, coll. F. Mantelatto, 01.xii.1995 ; 1 ♀, CCDB 644, Ubatuba, 23°26ʹ13ʺS, 045°04ʹ08ʺW, coll. F. Mantelatto, 01.xii.1995 ; 1 ♂, CCDB 632, Ubatuba, 23°26ʹ13ʺS, 045°04ʹ08ʺW, coll. F. Mantelatto, 01.xii.1995 ; 1 ♂, 1 ♀ ov, CCDB 630, Ubatuba, 23°26ʹ13ʺS, 045°04ʹ08ʺW, coll. F. Mantelatto, 01.xii.1995 ; 1 ♂, CCDB 615, Ubatuba, 23°26ʹ13ʺS, 045°04ʹ08ʺW, coll. F. Mantelatto, 01.xii.1995 ; 2 ♂, 1 ♀ ov, CCDB 581, Ubatuba, Ilha Anchieta, Praia do Leste, 23°33ʹ45ʺS, 045°05ʹ45ʺW, colls. F. Mantelatto & R. Biagi, 01.ii.2001 ; 2 ♀ ov, CCDB 6050, Ubatuba, Ilha Vitória, colls. F. Mantelatto et al., 20.x.2012 ; 1 ♂, 1 ♀, CCDB 6236, Ubatuba, Ilha Vitória, colls. N. Rossi et al., 06.vi.2015 ; 4 ♂, 1 ♀, CCDB 6315, Santos, Laje de Santos, 24°15ʹS, 046°10ʹW, colls. A. Castilho et al., 01.ix.2015 ; 2 ♂, 1 ♀, CCDB 6319, Cananéia, 25°53ʹS, 047°36ʹW, colls. A. Castilho et al., 01.iii.2014 .

Distribution. Western Atlantic— Bermuda, USA (Florida), Gulf of Mexico, Caribbean Sea, Venezuela, Brazil (Fernando de Noronha, Pernambuco, Alagoas, Sergipe, Bahia, Espírito Santo, Rio de Janeiro, São Paulo, Paraná, Santa Catarina) (Coelho & Ramos-Porto 1987; Mantelatto & Souza-Carey 1998; Rieger 1998; Melo 1999; Strasser & Price 1999; Coelho-Filho 2006; Felder et al. 2009; Fransozo et al. 2011; Lemaitre & Tavares 2015).

Remarks. Different color patterns among specimens of Pagurus brevidactylus throughout its distribution diverge from those reported by Provenzano (1959) and McLaughlin (1975), which indicates the possible presence of cryptic species under this name (Lemaitre & Tavares 2015). A preliminary molecular phylogeny revealed close relationship among South American species of the “ provenzanoi ” clade, including P. brevidactylus (Olguín & Mantelatto 2013) . Sequences accession numbers (GenBank): CCDB771—16S (DQ369945), CCDB 5086—COI (MF490058) (Mantelatto et al. 2006, 2018).