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Type: Journal article
Title: Diversity of cryptic Metazoa in Australian freshwaters: a new genus and two new species of sessile rotifer (Rotifera, Monogononta, Gnesiotrocha, Flosculariidae)
Author: Segers, H.
Shiel, R.
Citation: Zootaxa, 2008; 1750(1750):19-31
Publisher: Magnolia Press
Issue Date: 2008
ISSN: 1175-5326
Statement of
Hendrik Segers and Russell J. Shiel
Abstract: Rotifers are obligate aquatic animals that are reputed to have particularly efficient mechanisms to survive extreme, or prolonged periods of drought, in the form of inconspicuously small resting stages, hidden between plant litter and sediment. In order to study this phenomenon, we conducted a hatching experiment on dry sediment from two billabongs in Victoria, Australia, which had been stored under dehydrated conditions for about one year. Here, we report on the diversity of rotifers that hatched during the experiment. A total of 48 species, a majority of which belong to groups of sessile rotifers, were recorded, including several new or interesting taxa. Two new taxa are described: Floscularia wallacei n. spec., and Pentatrocha gigantea n. gen., n. spec., the largest rotifer ever recorded. Ptygura ctenoida Koste & Tobias, 1990 is raised to species rank.
Keywords: hatching experiment; dry sediment; resting stages
Description: Copyright © 2008 Magnolia Press
RMID: 0020080521
DOI: 10.11646/zootaxa.1750.1.2
Appears in Collections:Earth and Environmental Sciences publications
Environment Institute publications

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