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A new deep-water species of Trischizostoma (Crustacea: Amphipoda: Gammaridea: Trischizostomatidae) from western Mexico, NE Pacific Ocean
Published online by Cambridge University Press: 22 February 2016
Abstract
A new species of Trischizostoma collected at depths of 1392–1420 m from western Mexico is described. It represents the first record of the genus in the NE Pacific. The new species is morphologically similar to T. circulare, T. tohokuense and T. richeri. These species all share a large rostrum, expanded eyes and an entire telson. Distinctive characters of the new species include a dorsally unnotched urosomite 1, a subconical coxa 2, a subtriangular propodus of gnathopod 1, a single seta and one protuberance on the palm of gnathopod 2, the presence of 10 spine-teeth in the outer plate of maxilla 1 and of a large, 1-articulate maxilla 1 palp, and the telson with 2 minute simple setae and 2 minute projections distally.
- Type
- Research Article
- Information
- Journal of the Marine Biological Association of the United Kingdom , Volume 97 , Issue 1 , February 2017 , pp. 141 - 149
- Copyright
- Copyright © Marine Biological Association of the United Kingdom 2016
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