micro*scope - version 6.0

Holosticha (whole-o-stike-a) (tentative identification) is a hypotrich ciliate in which the cirri are distributed in rows on the ventral surface. It is one of a large number of stichotrichine genera, and the genera can only be properly distinguished by careful mapping of the the distribution of the cirri - an exercise which requires special preparation of the cell. This species with endosymbiotic algae. Phase contrast. This image taken by Michele Bahr and David Patterson of material collected from the water column and the margins of Lake Toolik (Alaska, USA) in August, 2001. Image copyright: Michele Bahr and D. J. Patterson, used under license to MBL (micro*scope).

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Holosticha

From the collection Lake Toolik, Arctic Alaska

Description of Holosticha: Urostylid ciliates, frontoventral zig-zag file extending past cell equator; frontoventral zig-zag file densely packed; transverse cirri; caudal cirri, ventral right posterior. Members of the hypotrich genus Holosticha are typically 50-300 microns in length and have an elongate, cigar shape. The oral ciliature conists of a relatively small adoral zone of membranelles which extends less than a third of the way down the cell. Somatic cilia are arranged in two rows of marginal cirri and two zigzag rows of midventral cirri. In addition, 3-4 frontal cirri are present and occasional cirri may be present elsewhere. Transverse cirri are present at the anterior end of the cell. From two to many macronuclei are present. Habitat and distribution: freshwater, marine and soils. Found world-wide. Common.

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Holosticha in other collections

Anteholosticha monilata, from Freshwater and Terrestrial Microbes of Idaho (USA) and Elsewhere	Holosticha kessleri, from Protozoan biomonitors in China	Holosticha viridis, from Protozoan biomonitors in China	Holosticha, from Microbes of Mono Lake	Holosticha, from Microbes of Convict Lake
Holosticha, from Protsville drawings of freshwater protists	Holosticha pullaster, from Limnic and marine Protists of Northern Germany and the Alps	Holosticha gibba, from Ciliates from Ehrenberg -- 1838	Holosticha pullaster, from Ciliates from Ehrenberg -- 1838	Holosticha, from Plum Island, Massachusetts coast, USA
Holosticha, from Ciliates at Yellowstone

micro*scope - version 6.0 - March, 2006
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