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首页> 美国政府科技报告 >Deep-sea Amphipoda of the Genus lepechinella (Crustacea): Smithsonian Contributions to Zoology, Number 133
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Deep-sea Amphipoda of the Genus lepechinella (Crustacea): Smithsonian Contributions to Zoology, Number 133

机译：Lepechinella（甲壳动物）的深海amphipoda：史密森尼对动物学的贡献，第133号

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摘要

Lepechinella, now a member of Dexamindae, is perhaps the most diverse gammaridean genus confined to the deep sea. All 23 species, including 9 new species, are reviewed. Atylus aberrantis J. L. Barnard is transferred to Lepechinella. Except for inner lobes on the lower lip of the latter genus, Atylus and Lepechinella scarcely differ from each other because of several species with intergrading characters. Lepechinella and Paralepechinella are the only dexaminid genera in the deep sea; Atylus, the sublittoral genus, contains the logical ancestors to Lepechinella. Most species of Lepechinella are probably ooze dwellers or are weakly epibenthic (demersal); many have bizarre ornaments and a few have the rare attribute of spinose bodies. The diversity of Lepechinella is undoubtedly much higher than now understood but collections are sparse and intact specimens difficult to obtain because of their fragility. They offer an excellent focus for studies of speciation in the deep sea because of a higher number of measurable taxonomic characteristics.

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