Chasmocarcinus hirsutipes Coelho & Coelho 1998

Abstract

<i>Chasmocarcinus hirsutipes</i> Coelho & Coelho, 1998 <p>(Figs. 3 G; 21H; 29B; 36C, D; 49H; 65I)</p> <p> <i>Chasmocarcinus</i> sp. C.— Coelho et al. 1980: 39, table III, appendix II [in list].— Barreto <i>et al.</i> 1993: 651 [in list]. <i>Chasmocarcinus hirsutipes</i> Coelho & Coelho, 1998: 804, 813, figs. 5‒7 [type localilty: Brazil, Pará].— Coelho <i>et al.</i> 2008: 12 [in list].— Ng <i>et al.</i> 2008: 76 [in list].</p> <p> <b>Type material</b> (not examined). Holotype male (DOUFPE 521); Brazil, Pará, <i>Almirante Saldanha</i>, stn 2476, 01°11’N, 47°05.5'W, 44 m.</p> <p> Paratypes: 2 males (MZUSP 13607, ex-DOUFPE 514; see Melo <i>et al.</i> 2003: 431), Proj. Geomar, stn 46, 01°05’N, 47°42.4'W; specimens of unknown sex (DOUFPE 517, DOUFPE 518, DOUFPE 519).</p> <p> <b>Diagnosis</b>. Anterolateral margins of carapace (Fig. 3 G; Coelho & Coelho 1998: fig. 5a, b) with low granular ridge, setose dorsal surface. Orbits short, proportionally short eye peduncles (Fig. 21 H; Coelho & Coelho 1998: fig. 5c, d). Antennular articles relatively short (Fig. 21 H). Third maxilliped (Fig. 29 B; Coelho & Coelho 1998: fig. 6e) ischium elongated, about same size as elongated merus. Bulging pterygostomial region, clearly visible from dorsal view. Fingers of major chela of holotype male (Fig. 36 C; Coelho & Coelho 1998: fig. 6d, e) setose, proportionally short, slightly shorter than propodus in dorsal view; pollex as long as dactylus. Fingers of minor chela of holotype male (Fig. 36 D; Coelho & Coelho 1998: fig. 6f) scissor-like; with small, sharp teeth. Inner margin of cheliped carpus with tooth (Fig. 3 G; Coelho & Coelho 1998: fig. 5a). Ambulatory legs (Fig. 3 G; Coelho & Coelho 1998: fig. 5a) setose, proportionally short; no subdistal spur on P5 dactylus. Fused thoracic sternites 1, 2 (Coelho & Coelho 1998: fig. 7a) broadly triangular, proportionally narrow, short. Male pleon (Fig. 49 H; Coelho & Coelho 1998: fig. 7c) with proportionally long, narrow telson, nearly triangular in shape. G1 slightly slender, narrow at base, distal segment with spinules (Fig. 65 I; Coelho & Coelho 1998: fig. 7d). G2, female pleon, thorax, vulvae undescribed.</p> <p> <b>Remarks</b>. Although no material of this species was examined, the description of the species by Coelho & Coelho (1998) leaves little doubt that it is indeed a separate species on account of its setose carapace and pereiopods and tooth on the inner margin of cheliped merus (Fig. 3 G; Coelho & Coelho 1998: fig. 5).</p> <p> <b>Distribution</b>. Brazil (Amapá, Pará). Depth: 24‒77 m (Coelho & Coelho 1998).</p>Published as part of <i>Ng, Peter K. L. & Castro, Peter, 2016, Revision of the family Chasmocarcinidae Serène, 1964 (Crustacea, Brachyura, Goneplacoidea), pp. 1-182 in Zootaxa 4209 (1)</i> on pages 21-22, DOI: 10.11646/zootaxa.4209.1.1, <a href="http://zenodo.org/record/272646">http://zenodo.org/record/272646</a&gt