Dolichiscus spinosetosus n. sp., a new arcturid isopod from the Weddell Sea, Antarctica

Two specimens of Dolichiscus spinosetosus were collected by means of an Agassiz trawl and a small dredge in the Weddell Sea, Antarctica. This species is characterized by a large number of strong spines on the dorsal side, some of these possessing tubercular tips. The dorsum is characterized by many...

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Bibliographic Details
Published in:Antarctic Science
Main Author: Brandt, Angelika
Format: Article in Journal/Newspaper
Language:English
Published: Cambridge University Press (CUP) 1999
Subjects:
Geology
Ecology, Evolution, Behavior and Systematics
Oceanography
Weddell
Weddell Sea
Antarc*
Antarctic Science
Antarctica
Online Access:http://dx.doi.org/10.1017/s0954102099000504
https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0954102099000504
Description
Summary:Two specimens of Dolichiscus spinosetosus were collected by means of an Agassiz trawl and a small dredge in the Weddell Sea, Antarctica. This species is characterized by a large number of strong spines on the dorsal side, some of these possessing tubercular tips. The dorsum is characterized by many smaller and shorter blunt spines and numerous long simple setae all over the body (on spines, pereonites and pleotelson). Dolichiscus acanthaspidus Schultz, 1981 is the taxon most closely related to this new species, but the new species has more setae and tubercular spines on all parts of the body and two caudolateral spines instead of one behind the supraocular ones.

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