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Document Type

Research

Abstract

Test truncated pyriform, widest at the base where it is fixed by a short stalk, truncated at the apical end where there is a definite, free, lip-like border; circular in cross section. Three or four corrugations at the widest part of the base. Body oval or spherical fastened to the base of the test, usually protruding from the test but not completely filling it. Tentacles slightly knobbed, numerous, scattered over the protruding surface of the body. Macronucleus central, oval; micronucleus not observed. One, two or three contractile vacuoles, requiring 12-20 minutes at 22° C. for a complete cycle.

Publication Date

1931

Journal Title

Proceedings of the Iowa Academy of Science

Volume

38

Issue

1

First Page

241

Last Page

243

Copyright

© Copyright 1931 by the Iowa Academy of Science, Inc.

Language

EN

File Format

application/pdf

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