Oligotrichida

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Oligotrichida

[¦äl·ə·gō′trik·ə·də]
(invertebrate zoology)
A minor order of the Spirotrichia; the body is round in cross section, and the adoral zone of membranelles is often highly developed at the oral end of the organism.
References in periodicals archive ?
a cladoceran Bosmina longirostris, an Oligotrich protozoan, and the midge larva Chaoborus americanus.
Oceanographic Institution report in the April 23 NATURE that many plankton called oligotrichs and tintinnids can retain chloroplasts they ingest and use them to their own advantage.