Pseudopaguristes calliopsis ( Forest & Saint Laurent, 1968 )

Nucci, Paulo Ricardo & Melo, Gustavo Augusto Schmidt De, 2015, Hermit crabs from Brazil: Family Diogenidae (Crustacea: Decapoda: Paguroidea), except Paguristes, Zootaxa 3947 (3), pp. 327-346 : 343

Pseudopaguristes calliopsis ( Forest & Saint Laurent, 1968)

( Figs 4 C, 7C)

Paguristes calliopsis Forest & Saint Laurent, 1968: 80 , figs 9, 20, 31, 40, 48.— Coelho & Ramos, 1972: 167.— Coelho & Ramos-Porto, 1986: 48.— Rieger, 1998: 418.— Melo, 1999: 74, fig. 28.

Pseudopaguristes calliopsis Rahayu, 2005: 25 .—McLaughlin et al., 2010: 23.

Material examined. Brazil: Rio de Janeiro—Angra dos Reis, 1 spec. ( PCNH). São Paulo—Ubatuba, 7 spec. (DOUFPE—1857); Ilha Anchieta, 6 spec. ( PCNH); 6–12 m, 8 spec. ( PCNH); north of Ilha Anchieta, 1 spec. ( PCNH); coll. 1982, 2 spec. ( PCNH); coll. 1983, 4 spec. ( PCNH); west of Ilha Anchieta, 15–16 m, 1 spec. ( PCNH).

Diagnosis. Shield longer than broad. Rostrum triangular, broad, overreaching half length of ocular scales. Ocular peduncles broadened proximally, with 3/5 shield length. Ocular scales strong, separated, with prominent dilatation at mesial margins. Antennal peduncles slender, reaching distal third of ocular peduncles. Chelipeds equal; length of carpus 1.5 times maximum width; mesial face with 4 strong teeth with corneous tip, decreasing in size posteriorly; dactyl approximately twice longer than palm; margin ventromesial of merus with 5 or 6 teeth. First ambulatory legs with 9–11 teeth on dorsal face of propodus; mesial face with longitudinal hollow with transversal striae slightly tuberculate.

Distribution. Western Atlantic—Guyana, Suriname, French Guiana and Brazil (from Ceará to São Paulo).

Remarks. Forest & Saint Laurent (1968) described P. calliopsis , a new species from Brazilian coast. However, after the works of McLaughlin (2002), Rahayu (2005) and Rahayu & McLaughlin (2010), it was established and accepted that the genus Paguristes has 13 pairs of gills, Areopaguristes 12 pairs of gills and Pseudopaguristes 8 pairs of gills. Thus, after examination of the material of Paguristes deposited in the MNHN-Paris, Rahayu (2005) transferred Paguristes calliopsis to the genus Pseudopaguristes .

Figures

FIGURE 4. Shield and cephalic region: A, Loxopagurus loxochelis; B, Petrochirus diogenes; C, Pseudopaguristes calliopsis.