Hydroniscus Hansen, 1916
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https://doi.org/ 10.1080/0022293021000030844 |
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https://treatment.plazi.org/id/03998778-D042-FFF6-FD40-FAA4348A05AB |
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Felipe |
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Hydroniscus Hansen, 1916 |
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Hydroniscus Hansen, 1916 View in CoL
Type species: Hydroniscus abyssi Hansen, 1916 .
Diagnosis. Haploniscidae with pereonites 5–7 fused with pleotelson to form a consolidated robust segment. Cephalon produced into rostral lobe or small conical process. Antenna 2 with article 3 lacking spinous process. Uropods either reduced or absent. Pleotelson either truncated or rounded posteriorly with posterolateral projection small. Body capable of rolling as a round ball.
Remarks. This genus presently includes 10 species, including three new species discovered in this study. Two species are known from the Pacific: H. minutus Birstein, 1971 and H. vitjazi Birstein, 1963 . Seven species are known from the Atlantic: H. abyssi Hansen, 1916 , H. quadrifrons Menzies, 1962 , H. ornatus Menzies, 1962 ,
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.
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