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Urceolaria spinicola n. sp., an Epizoic Ciliate (Peritrichida, Mobilina) of Sea‐Urchin Spines and Pedicellariae *
Author(s) -
BEERS C. DALE
Publication year - 1964
Publication title -
the journal of protozoology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.067
H-Index - 77
eISSN - 1550-7408
pISSN - 0022-3921
DOI - 10.1111/j.1550-7408.1964.tb01775.x
Subject(s) - strongylocentrotus droebachiensis , sea urchin , ciliate , biology , anatomy , zoology , fishery , ecology
SYNOPSIS.Urceolaria spinicola n. sp. is described from the sea urchin Strongylocentrotus droebachiensis at Mt. Desert Island, Maine. In the summer of 1963, it was found in abundance on the host, especially on the short spines and pedicellariae of the circumoral region and on those surrounding the periproct. It is a harmless bacterial feeder. Characteristic features are its low cylindrical form and H‐shaped macro‐nucleus, and the presence of about 25 relatively long cirri on the margin of the adhesive disc.