Achelous spinicarpus (Stimpson, 1871)

(Figure 18B)

Portunus spinicarpus Stimpson, 1871: 148 . Material examined. Brazil, São Paulo: 1 ♀, CCDB 1538, Ubatuba, coll. D. Rosa; 15.viii.2011 ; 1 ♂, CCDB 3629, Ubatuba, coll. D. Rosa, 05.ix.2011 ; 1 ♂, 3 ♀, 3 j, CCDB 3712, Ubatuba, coll. D. Rosa, 15.xi.2011 ; 1 ♀, CCDB 756, Ubatuba, coll. F. Mantelatto, 01.ix.2002 ; 3 ♂, CCDB 6225, Ubatuba, coll. F. Mantelatto, 07.xi.2000 ; 1 ♀ ov, CCDB 6123, Ubatuba, coll. F. Mantelatto, viii.2002 , 1 ♂, CCDB 753, Caraguatatuba, coll. F. Mantelatto, 01.vii.2001 ; 1 ♂, CCDB 3299, Ubatuba, Ilha das Palmas, coll. D. Rosa, 22.iv.2011 ; 2 ♂, 1 ♀, CCDB 5782, RV Soloncy Moura Expedition, Point 8, 89m, colls. F. Zara et al., 18.viii.2015 .

Distribution. Western Atlantic—USA (North and South Carolina, Florida), Gulf of Mexico, Antilles, Colombia, Venezuela, Guianas, Brazil (Amapá, Pará, Ceará, Alagoas, Sergipe, Bahia, Espírito Santo, Rio de Janeiro, São Paulo, Santa Catarina, Rio Grande do Sul), and Uruguay (Holthuis 1959; Williams 1984; Barreto et al. 1993; Melo 1996, 2008, 2010; Bertini et al. 2004; Almeida et al. 2007a; Hernández-Ávila et al. 2007; Almeida & Coelho 2008; Felder et al. 2009; Mendonça et al. 2019).

Remarks. Previous records in São Paulo include Ubatuba (Bertini et al. 2004; Pardal-Souza & Pinheiro 2013) and Caraguatatuba (Braga et al. 2005). Molecular perspective revealed the phylogenetic position of the species within the resurrected genus Achelous (Mantelatto et al. 2009, 2018b). Sequences accession number (GenBank): CCDB 756—16S (KX060431), COI (KX060221) (Negri et al. 2018).