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A record of the genus Trochochaeta (Polychaeta) in the southern hemisphere with description of a new species

Published online by Cambridge University Press:  16 October 2012

Ralf Bochert*
Affiliation:
Leibniz Institute for Baltic Sea Research Warnemünde (IOW), Department of Biological Oceanography, Seestrasse 15, D-18119 Rostock, Germany
Michael L. Zettler
Affiliation:
Leibniz Institute for Baltic Sea Research Warnemünde (IOW), Department of Biological Oceanography, Seestrasse 15, D-18119 Rostock, Germany
*
Correspondence should be addressed to: R. Bochert, Leibniz Institute for Baltic Sea Research Warnemünde (IOW), Department of Biological Oceanography, Seestrasse 15, D-18119 Rostock, Germany email: [email protected]

Abstract

The small polychaete family Trochochaetidae is monogeneric and had been recorded almost exclusively in the northern hemisphere before this study. During a benthic investigation in the coastal shelf zone off Angola at 15°S several specimens were collected from 84 m depth differing from other members of the family and we described it as a new species herein. The only known African species so far was Trochochaeta kirkegaardi from the eastern Atlantic. Trochochaeta ankeae sp. nov. is characterized by having four minute eyes, a small conical antenna, a nuchal crest projecting through chaetiger 2, by lacking notochaetae on chaetiger 2, by having acicular spines on neuropodia 2 and 3 and a pair of conical papillae ventral on abdomen. A key to all 11 known species (including an unnamed one) is given.

Type
Research Article
Copyright
Copyright © Marine Biological Association of the United Kingdom 2012 

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References

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