Published December 31, 2016 | Version v1

Chasmocarcinus hirsutipes Coelho & Coelho 1998

Description

Chasmocarcinus hirsutipes Coelho & Coelho, 1998

(Figs. 3 G; 21H; 29B; 36C, D; 49H; 65I)

Chasmocarcinus sp. C.— Coelho et al. 1980: 39, table III, appendix II [in list].— Barreto et al. 1993: 651 [in list]. Chasmocarcinus hirsutipes Coelho & Coelho, 1998: 804, 813, figs. 5‒7 [type localilty: Brazil, Pará].— Coelho et al. 2008: 12 [in list].— Ng et al. 2008: 76 [in list].

Type material (not examined). Holotype male (DOUFPE 521); Brazil, Pará, Almirante Saldanha, stn 2476, 01°11’N, 47°05.5'W, 44 m.

Paratypes: 2 males (MZUSP 13607, ex-DOUFPE 514; see Melo et al. 2003: 431), Proj. Geomar, stn 46, 01°05’N, 47°42.4'W; specimens of unknown sex (DOUFPE 517, DOUFPE 518, DOUFPE 519).

Diagnosis. 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.

Remarks. 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).

Distribution. Brazil (Amapá, Pará). Depth: 24‒77 m (Coelho & Coelho 1998).

Notes

Published as part of Ng, Peter K. L. & Castro, Peter, 2016, Revision of the family Chasmocarcinidae Serène, 1964 (Crustacea, Brachyura, Goneplacoidea), pp. 1-182 in Zootaxa 4209 (1) on pages 21-22, DOI: 10.11646/zootaxa.4209.1.1, http://zenodo.org/record/272646

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Linked records

Additional details

Biodiversity

Scientific name authorship
Coelho & Coelho
Kingdom
Animalia
Phylum
Arthropoda
Order
Decapoda
Family
Chasmocarcinidae
Genus
Chasmocarcinus
Species
hirsutipes
Taxon rank
species
Type status
holotype
Taxonomic concept label
Chasmocarcinus hirsutipes Coelho, 1998 sec. Ng & Castro, 2016

References

  • Coelho P. A., Ramos Porto, M. & Koening M. L. (1980) Biogeografia e bionomia dos crustaceos decapodos do litoral equatorial brasileiro. Trabalhos Oceanograficos da Universidade Federal de Pernambuco, 15, 7 - 138.
  • Barreto, A. V., Coelho, P. A. & Ramos-Porto, M. (1993) Distribuicao geografica dos Brachyura (Crustacea, Decapoda) coletados na plataforma continental do Norte e Nordeste do Brasil. Revista Brasileira de Zoologia, 10 (4), 641 - 656. http: // dx. doi. org / 10.1590 / S 0101 - 81751993000400010
  • Coelho, P. A., Almeida, A. O. & Bezerra, L. E. A. (2008) Checklist of the marine and estuarine Brachyura (Crustacea: Decapoda) of northern and northeastern Brazil. Zootaxa, 1956, 1 - 58.
  • Melo, G. A. S. de, Vezzani, R. M. & Campos, O. (2003). Type catalogue of the Curstacea Decapoda in the collection of the Museu de Zoologia da Universidade de Sao Paulo, Brazil. Proceedings of the Biological Society of Washington, 116 (2), 423 - 437.