oostegite


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oostegite

[ō′äs·tə‚jīt]
(invertebrate zoology)
In many crustaceans, a platelike expansion of the basal segment of a thoracic appendage that aids in forming an egg receptacle.
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References in periodicals archive ?
Oostegites 2-5 on both sides well-developed and completely enclosing enlarged brood pouch.
grandis, which indicate that it should be in a subfamily of its own are: Female: Second oostegites extending beyond anterior margin of head; coxal plates of first and second pereomeres extending medially over dorsal surface of pereon; pleon strongly torsioned and pointing forward over pereon.
Oostegites large relative to body size, almost completely covering whole body ventrally and somewhat visible dorsally; oostegite 1 semicircular anteriorly, produced into posteriorly extended slender terete posterolateral projection, internal ridge bearing only sparse simple teeth; other oostegites strongly overlapping and fully enclosing brood pouch.
Nonetheless, the female's barbula, maxilliped and first oostegite conform well with those previously recorded for A.
Pereomeres all of nearly same length, their coxal plates reduced or absent; long narrow oostegites extending clear across brood pouch and greatly overlapping opposite ones.
Each guarded female was checked for the presence of small oostegites (i.
Because only isopods with small oostegites occur in precopula, or are securely grasped by mature males, they were defined as receptive.