A new species of Cumella (Cumacea, Nannastacidae) from Argentina, and a partial redescription of Cumella vicina Zimmer, 1944
A new nannastacid cumacean, Cumella biformis, is described from the Argentinean continental shelf. C. biformis is readily distinguished from the other known species of Cumella by having: (1) a short, upturned pseudorostrum lacking projecting siphons and (2) uropods with distal spines fused to the ra...
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| Autores principales: | , |
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| Formato: | JOUR |
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| Acceso en línea: | http://hdl.handle.net/20.500.12110/paper_0011216X_v75_n2_p145_Micca |
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| Sumario: | A new nannastacid cumacean, Cumella biformis, is described from the Argentinean continental shelf. C. biformis is readily distinguished from the other known species of Cumella by having: (1) a short, upturned pseudorostrum lacking projecting siphons and (2) uropods with distal spines fused to the rami and endopods slightly arched. Two distinct forms are recognized for ovigerous females: one large (2.32-2.55 mm) with rudimentary exopods on the third maxilliped and first two peraeopods, and another smaller (2.07-2.24 mm) with fully-developed exopods. The type material of C. vicina Zimmer, 1944 from the Caribbean Sea was examined and a partial redescription of this species is provided. |
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