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Observations on Askenasia volvox (Claparède & Lachmann, 1859)
Author(s) -
TAMAR HENRY
Publication year - 1973
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.1550-7408.1973.tb05999.x
Subject(s) - macronucleus , biology , contractile vacuole , ciliata , anatomy , cytoplasm , vacuole , zoology , botany , ciliate , protozoa , microbiology and biotechnology , ecology
SYNOPSIS Specimens of Askenasia volvox from southwestern Indiana have a variable body shape and a size range of 29 × 22 μ m to 42 × 27 μ m. The pectinelles, membranelles, and cirri each number 47–48, and respectively have a length of 8–10, 20, and 30 μ m. The pectinelles arise from ciliary rows consisting of ∼10 kinetosomes, and every membranelle originates from 2 adjacent rows of ∼14–17 kinetosomes. Different algae as well as Bodo and certain other protozoa are ingested. The macronucleus, micronucleus, the cytoplasm and its inclusions, trichites, the function of the contractile vacuole, and movements and behavior are described.