A New Deep-Sea Species of Chaetognaths, Eukrohnia geptneri, from the Northwestern Pacific—A Supposed Ancestor of the Antarctic Species Eukrohnia bathyantarctica

A New Deep-Sea Species of Chaetognaths, Eukrohnia geptneri, from the Northwestern Pacific—A... A new deep-sea species of chaetognaths, Eukrohnia geptneri, from the Northwestern Pacific is described; the young were registered in the epipelagic zone, while the adult specimens were found in deep depths of the Japanese Depression. Morphologically, this species is close to E. bathyantarctic; however, it differs from the latter in a series of characteristics. The diagnosis of the new species, drawings, and identification keys for the world fauna of the genus Eukrohniaare presented. A hypothesis is proposed on the origin of bathypelagic species inhabiting Antarctic waters, the chaetognath Eukrohnia bathyantarcticaDavid, 1958, from the species E. geptnerisp. nov. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Russian Journal of Marine Biology Springer Journals

A New Deep-Sea Species of Chaetognaths, Eukrohnia geptneri, from the Northwestern Pacific—A Supposed Ancestor of the Antarctic Species Eukrohnia bathyantarctica

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Publisher
Kluwer Academic Publishers-Plenum Publishers
Copyright
Copyright © 2001 by MAIK “Nauka/Interperiodica”
Subject
Life Sciences; Freshwater & Marine Ecology
ISSN
1063-0740
eISSN
1608-3377
D.O.I.
10.1023/A:1016728132658
Publisher site
See Article on Publisher Site

Abstract

A new deep-sea species of chaetognaths, Eukrohnia geptneri, from the Northwestern Pacific is described; the young were registered in the epipelagic zone, while the adult specimens were found in deep depths of the Japanese Depression. Morphologically, this species is close to E. bathyantarctic; however, it differs from the latter in a series of characteristics. The diagnosis of the new species, drawings, and identification keys for the world fauna of the genus Eukrohniaare presented. A hypothesis is proposed on the origin of bathypelagic species inhabiting Antarctic waters, the chaetognath Eukrohnia bathyantarcticaDavid, 1958, from the species E. geptnerisp. nov.

Journal

Russian Journal of Marine BiologySpringer Journals

Published: Oct 16, 2004

References

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