Peritrichida


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Per·i·trich·i·da

(per'i-trik'i-dă),
An order of ciliates (subclass Peritrichia, phylum Ciliophora) characterized by a cylindric shape with the cilia usually limited to the zone surrounding the mouth opening; includes the suborder Mobilina, the members of which are all ectoparasites or endoparasites of aquatic invertebrates and vertebrates, of which the genus Trichodina includes economically significant gill parasites of fish.
[peri- + G. thrix, hair]
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References in periodicals archive ?
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).
Por otra parte, Madoni y Braghiroli (2007) observaron el predominio de los ordenes Hypotrichida, Hymenostomatida y Peritrichida en un estudio realizado en otro rio de Italia, Mincio, con niveles elevados de contaminacion.
PERITRICHIDA COLINIZATION OF MATURE LARVAE OF HYDROPORUS SIGNATUS SHARP (COLEOPTERA: DYTISCIDAE), Jessica L.
Mature larvae of Hydroporus signatus Sharp collected from a small eutrophic habitat served as substrates for Peritrichida (Ciliophora).