Opisthopora

Opisthopora

[¦ä·pəs¦thäp·ə·rə]
(invertebrate zoology)
An order of the class Oligochaeta distinguished by meganephridiostomal, male pores opening posteriorly to the last testicular segment.
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References in periodicals archive ?
Soil moisture and temperature: Tolerances and optima for a non-native earthworm species, Amynthas agrestis (Oligochaeta: Opisthopora: Megascolecidae).