Stenorhynchus seticornis (Herbst, 1788)

(Figure 12C)

Cancer seticornis Herbst, 1788: 229, pl. 15, fig. 91.

Material examined. Brazil, São Paulo: 1 ♂, CCDB 1290, Ubatuba, Ilha Anchieta, coll. F. Mantelatto, 01.x.2000 ; 1 ♂, CCDB 1291, Ubatuba, Ilha Anchieta, coll. F. Mantelatto, 01.xii.2000 ; 1♂, 1 ♀ ov, CCDB 1287, Ubatuba, Ilha Anchieta, colls. F. Mantelatto et al., 01.i.2000 ; 1 ♀ ov, CCDB 1288, Ubatuba, Ilha Anchieta, colls. F. Mantelatto et al., 01.ii.2000 ; 1 j, CCDB 1289, Ubatuba, Ilha Anchieta, colls. F. Mantelatto et al., 01.iv.2000 ; 4 ♂, CCDB 3953, Ubatuba, Ilha das Couves, coll. F. Zara, 21.iv.2012 ; 1 ♀, CCDB 5051, Ubatuba, Ilha das Couves, colls. F. Mantelatto et al., 10.x.2012 ; 2 ♂, 1 ♀, CCDB 5182, Ubatuba, Ilha das Couves, colls. F. Mantelatto et al., 10.x.2012 ; 1 ♂, 1 ♀, CCDB 3619, Ubatuba, offshore, coll. D. Rosa, 05.ix.2011 ; 1 ♂, 1 ♀ ov, CCDB 4198, Ubatuba, offshore, coll. D. Rosa, 15–28.i.2012 ; 1 ♂, CCDB 73, Ubatuba, Praia do Itaguá, coll. F. Mantelatto, 01.ii.1995 ; 1 ♂, CCDB 5484, Ubatuba, Praia do Itaguá, colls. N. Rossi et al., 30.xi.2014 ; 1 ♀, CCDB 3276, Ubatuba, Praia do Lamberto, colls. F. Mantelatto et al., 03.iv.2011 ; 1 ♀ ov, CCDB 1676, São Sebastião, colls. F. Mantelatto & R. Biagi, 01.xi.2004 .

Distribution. Western Atlantic—USA (North Carolina) to Brazil (Amapá, Pará, Maranhão, Piauí, Ceará, Rio Grande do Norte, Paraíba, Alagoas, Sergipe, Bahia, Espírito Santo, Rio de Janeiro, São Paulo, Paraná, Santa Catarina, Rio Grande do Sul), and Argentina (Barreto et al. 1993; Melo 1996; Mantelatto et al. 2004b; Almeida et al. 2007a, b; Felder et al. 2009; Spivak et al. 2019).

Remarks. Previous records on the coast of São Paulo state include Ubatuba (Mantelatto & Fransozo 2000; Bertini & Fransozo 2004; Bertini et al. 2004, 2010; Mantelatto et al. 2004b; Alves et al. 2012b, 2013b), Ilha das Couves and Ilha Rapada (Antunes et al. 2016), Ilha Vitória (Alves et al. 2012a), and Caraguatatuba (Braga et al. 2005). Its presence in Argentina needs to be validated (Spivak et al. 2019). Guinot (2012) transferred the genus Stenorhynchus from Inachidae to Inachoididae on the basis of adult and larval morphology and behavior. Sequences accession number (GenBank): CCDB 3953—16S (MF490218), COI (MF490122) (Mantelatto et al. 2018a).