Coulmannia rossensis sp. n. (Isopoda, Asellota, Paramunnidae) from the Ross Sea, Southern Ocean

A new species of Coulmannia, C. rossensis, is described from the Ross Sea, Antarctica. It is most similar to C. ramosae Castelló, 2004, but can easily be distinguished from this species by the males yielding a pair of granulate humps on the dorsum of the pereonites 1–6 and a single granulate hump on...

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Bibliographic Details
Published in:ZooKeys
Main Authors: Madhumita Choudhury, Brenda Doti, Angelika Brandt
Format: Article in Journal/Newspaper
Language:English
Published: Pensoft Publishers 2011
Subjects:
Zoology
QL1-991
Southern Ocean
Ross Sea
Humps
Antarc*
Antarctica
Online Access:https://doi.org/10.3897/zookeys.82.775
https://doaj.org/article/52c4f2a561e84e94b0c4dc53dbc2822f
Description
Summary:A new species of Coulmannia, C. rossensis, is described from the Ross Sea, Antarctica. It is most similar to C. ramosae Castelló, 2004, but can easily be distinguished from this species by the males yielding a pair of granulate humps on the dorsum of the pereonites 1–6 and a single granulate hump on the pereonite 7 and the free pleonite. Coulmannia rossensis sp. n. is sexually dimorphic. The dorsal sculpture of the female bodies yield a single granulate hump on all the pereonites and free pleonite. The species of the genus Coulmannia are restricted to the Southern Ocean, and C. rossensis sp. n. is the fourth species included in it.

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