A new western Atlantic species of Collodes Stimpson (Decapoda, Brachyura, Inachoididae)

in Crustaceana
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A new species of spider crab, Collodes tuerkayi n. sp., is described and illustrated from the Western Atlantic (Puerto Rico and northern Brazil). The new species superficially resembles C. inermis A. Milne-Edwards, 1878, in the general appearance of the body, but is distinguished by the details of the carapace, thoracic sternum and antennal ornamentation and the proportion of the pereopods.

A new western Atlantic species of Collodes Stimpson (Decapoda, Brachyura, Inachoididae)

in Crustaceana

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References

CoelhoP. A.1971. Nota prévia sôbre os Majidae do norte e nordeste do Brasil. Arquivos do Museu Nacional54: 137-143.

MeloG. A. S.1996. Manual de identificação dos Brachyura (caranguejos e siris) do litoral Brasileiro: 1-603. (Plêiade/FAPESPSão Paulo).

MeloG. A. S.1998. Malacostraca — Eucarida. Brachyura. Oxyrhyncha and Brachyrhyncha. In: YoungP. S. (ed.) Catalogue of Crustacea of Brazil. Série Livros 6: 455-515. (Museu NacionalRio de Janeiro).

Milne-EdwardsA.1878. Études sur les Crustacés Podophtalmaires de la région méxicaine. In: Mission Scientifique du Mexique et dans l’Amérique Centrale. Recherches zoologiques pour servir à l’Histoire de la faune de l’Amérique Centrale et du Mexique 5: 121-184. (Ministère de l’Instruction PubliqueParis).

RathbunM. J.1901. The Brachyura and Macrura of Porto Rico. Bulletin of the United States Fish Commission for 19002(2): 1-137.

RathbunM. J.1925. The spider crabs of America. Bulletin of the United States National Museum129: 1-613.

RathbunM. J.1933. Brachyuran crabs of Porto Rico and the Virgin Islands. Scientific survey of Porto Rico and the Virgin Islands. Annals of the New York Academy of Sciences15: 1-121.

Figures

  • View in gallery

    A-B, Collodes tuerkayi sp. nov., female holotype, cl 10 mm, cw 8 mm (MZUSP 8822); C-D, Collodes inermis A. Milne-Edwards, 1878, male holotype, cl 7.4, cw 5.8 mm (MCZ 2949). A-B, cephalothorax dorsal view; C-D, cephalothorax ventral view. Scale bars = 3 mm.

  • View in gallery

    A-B, Collodes tuerkayi n. sp., male paratype, cl 7.8 mm, cw 6.48 mm (USNM 67835); C-D, Collodes inermis A. Milne-Edwards, 1878, male, cl 10.16, cw 7.76 mm (USNM 1256360). A, C, habitus, dorsal view; B, D, cephalothorax, ventral view. Pereopods removed electronically in B and D. Scale bars = 5 mm.

  • View in gallery

    A, C, Collodes tuerkayi n. sp., male paratype, cl 7.8 mm, cw 6.48 mm (USNM 67835); B, D, Collodes inermis A. Milne-Edwards, 1878, male, cl 10.16, cw 7.76 mm (USNM 1256360). A-B, cephalothorax dorsal view; C-D, cephalothorax ventral view. Note in C the lateral margin of the thoracic sternite VIII (black arrow) and the posterior margins of the thoracic episternites V-VII (grey arrow) being strongly crenulated. Scale bars = 2 mm.

  • View in gallery

    A, C, Collodes tuerkayi n. sp., male paratype, cl 7.8 mm, cw 6.48 mm (USNM 67835); B, D, Collodes inermis A. Milne-Edwards, 1878, male, cl 10.16, cw 7.76 mm (USNM 1256360). A-B, anterior region of the cephalothorax, ventral view; C-D, chela of the right cheliped, lateral view. Scale bars = 1 mm.

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