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Re-investigation of Polyoeca dichotoma and Acanthoeca spectabilis (Acanthoecidae: Choanoflagellida)

Published online by Cambridge University Press:  11 May 2009

Shigemitsu Hara  and
Eiji Takahashif
Shigemitsu Hara
Affiliation:
Department of Nature of the Earth, Division of Environmental Science, The Graduate School of Science and Technology, Kobe University
Eiji Takahashif
Affiliation:
Department of Biology, Faculty of Science, Kobe University, Rokkodai, Nada, Kobe 657, Japan To whom correspondence should be addressed.
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Abstract

Light and electron microscopical reinvestigation of Polyoeca dichotoma Kent revealed that Acanthoecopsis spiculifera Norris, the type species of the genus, is a synonym for Polyoeca dichotoma. Since this step invalidates the use of the name Acanthoecopsis, a new genus Acanthocorbis was established for the three species formerly included in Acanthoecopsis.

The three dimensional arrangement of costal strips forming the loricae of Polyoeca dichotoma and Acanthoeca spectabilis Ellis were examined by scanning electron microscopy. The arrangement of costal strips were similar in both species. The longitudinal costal strips and those forming the spines were arranged outside the supplementary costae and those of the transverse bonds.

Type
Research Article
Information
Journal of the Marine Biological Association of the United Kingdom , Volume 64 , Issue 4 , November 1984 , pp. 819 - 827
Copyright
Copyright © Marine Biological Association of the United Kingdom 1984

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