oostegites

oostegites

the thoracic limb plates found in some crustaceans that form a brood pouch.
References in periodicals archive ?
Head deeply embedded in pereon, its anterior margin overreached by second oostegites.
Oostegites 2-5 of both pairs large and completely enclosing vaulted brood pouch.
Oostegites 2-5 on both sides well-developed and completely enclosing enlarged brood pouch.
Based on the development of the oostegites (brood plates) and male copulatory stylet, females and males, respectively, and other criteria were categorized as juvenile below 3.
Based on the development of the oostegites in the females and the copulatory stylet in males below 3.
The isopods were immediately fixed in 70% ethanol and categorized to reproductive stage: juveniles (JUV), with no apparent sexual structures; receptive females, with small, nonfunctional oostegites and with (RFP) or without (RF) penes; mature females, with marsupium of large overlapping oostegites with or without embryos in the marsupium and with (MFP) or without (MF) penes; immature males (IM), with nonfunctional penes and lacking appendix masculina and ciliary tufts on the third and fourth pereopods; and mature males (MM), with functional penes and having appendix masculina and ciliary tufts upon the third and fourth pereopods.
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.
Females were identified by the presence of small or large oostegites, whereas males were recognized by the presence of penes or stylets.
Oostegites almost completely enclosing brood pouch; oostegite 1 (Fig.
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.