Crustaceans

Entomodont hinge in which the anterior and anteromedian elements are bifid, and the posterior element is bifid or crenulate (Family Schizocytheridae only).

Expanded section of antennal gland between end sac and excretory pore. Consists of simple vesicle or is subdivided into a number of lobes or elongate diverticula extending into different regions of ...

longitudinal suture

Animals; Crustaceans

Fine longitudinal line extending posteriorly just above the base of the antennal spine.

transverse suture

Animals; Crustaceans

Fine short vertical line extending dorsally from the ventral margin of the carapace.

epicaridium

Animals; Crustaceans

First of three larval stages (epicaridium, microniscus, cryptoniscus) of certain parasitic isopods. Free-living, characterized by stout, segmented body lacking last (= seventh) pair of pereopods. ...