CALIPERIA BREVIPES N. SP. (CILIATA: PERITRICHA), EPIZOIC ON RAJA ERINACEA MITCHILL AT SAINT ANDREWS, NEW BRUNSWICK

Two adults of the common skate, or tobacco box, Raja erinacea Mitchill, trawled in Passamaquoddy Bay, N. B., in June, 1958, bore myriads of peritrichous ciliates on and about the free edges of the gill filaments. The morphology of these epibionts refers them to the genus Caliperia Laird (Scyphidiida...

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Bibliographic Details
Published in:Canadian Journal of Zoology
Main Author: Laird, Marshall
Format: Article in Journal/Newspaper
Language:English
Published: Canadian Science Publishing 1959
Subjects:
Animal Science and Zoology
Ecology, Evolution, Behavior and Systematics
New Zealand
Laird
Common skate
Online Access:http://dx.doi.org/10.1139/z59-033
http://www.nrcresearchpress.com/doi/pdf/10.1139/z59-033
Description
Summary:Two adults of the common skate, or tobacco box, Raja erinacea Mitchill, trawled in Passamaquoddy Bay, N. B., in June, 1958, bore myriads of peritrichous ciliates on and about the free edges of the gill filaments. The morphology of these epibionts refers them to the genus Caliperia Laird (Scyphidiidae), previously known from a single New Zealand species. C. brevipes differs from the genotype in having relatively shorter caudal processes, a posteriorly located micronucleus, and a prominent siderophilous collar at the cytostome. Comparisons are drawn between these organisms and Ellobiophrya donacis Chatton and Lwoff.

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