Hypotrichida

Hypotrichida

[‚hī·pə′trik·ə·də]
(invertebrate zoology)
An order of highly specialized protozoans in the subclass Spirotrichia characterized by cirri on the ventral surface and a lack of ciliature on the dorsal surface.
References in periodicals archive ?
Phylogenetic reconstruction of hypotrichous ciliates (Protozoa, Ciliophora, Hypotrichida).
is a dorsoventrally flattened organism placed in the Spirotrichea, with prominent ventral cirri and less conspicuous dorsal bristle cilia in the Order Hypotrichida (Lynn, 2007).
This was due to the occurrence of species of Hymenostomatida, Heterotrichida, Hypotrichida and Peritrichida only in this portion of the water column, once these orders are greatly made up by littoral and benthic species (BERGER; FOISSNER, 2003).
X sp.15 Lagynophrya acuminata X X X X (Kahl, 1935) sp.18 Mesodinium pulex (Claparede & Lachmann, 1859) X X X X Heterotrichida sp.27 Spirostomum teres (Claparede & Lachmann, 1858) X sp.28 Stentor roeselii X (Ehrenberg, 1835) Hymenostomatida sp.20 Paramecium aurelia X (Muller, 1773) sp.29 Stokesia vernalis X X (Wenrich, 1929) sp.31 Urocentrum turbo X (Muller, 1786) Hypotrichida sp.2 Aspidisca cicada X (Muller, 1786) Karyorelictida sp.17 Loxodes magnus X (Stokes, 1887) Nassulida sp.19 Microthorax pusillus X X X (Engelmann, 1862) Oligotrichida sp.13 Halteriagrandinella X X X X (Muller, 1793) sp.16 Limnostrombidium sp.
This ciliate's amplified SSU rDNA was identical to published sequences for three different ciliates: Hypotrichida sp.
The cyst of Urostyla grandis (Hypotrichida: Urostylidae): ultrastructure and evolutionary implications.
(Ciliophora: Hypotrichida) using RAPD fingerprinting, including comparison with morphometric analyses.
A guide to the species of Euplotes (Hypotrichida, Ciliatea).