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Thylacoplethus isaevae sp. nov., a new colonial rhizocephalan (Crustacea: Rhizocephala: Thompsoniidae) parasitic on a north-west Pacific hermit crab Pagurus trigonocheirus

Published online by Cambridge University Press:  12 October 2004

Alexey V. Rybakov
Affiliation:
Institute of Marine Biology, Far East Division, Russian Academy of Sciences, Vladivostok 690041, Russia
Andrey I. Shukalyuk
Affiliation:
Institute of Marine Biology, Far East Division, Russian Academy of Sciences, Vladivostok 690041, Russia

Abstract

Thylacoplethus isaevae, a new species of colonial rhizocephalans, is described from the hermit crab Pagurus trigonocheirus collected in the Sea of Okhotsk, along the coast of Sakhalin Island. The new species differs from other known species of Thylacoplethus by the presence of complex spermatogenic bodies located within the mantle and the significantly larger size of its externae.

Type
Research Article
Copyright
2004 Marine Biological Association of the United Kingdom

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