carinal margin — In cirripeds (Thoracica) , edge of tergum adjacent to carina, occluding with carinal margin of opposed tergum [Moore and McCormick, 1969]. (Subclass Cirripedia): Edge of any plate adjacent to carina; occluding with carinal margin of opposed… … Crustacea glossary
rostrum — (1) Anteriorly projecting, unpaired, usually rigid median extension of carapace between eyes or ocular peduncles; (2) anterior beaklike projection of valve margins overhanging incisure or notch (Ostracoda); (3) unpaired anteroventral plate of… … Crustacea glossary
tergum — Arched dorsal part of abdominal somites [Poore, 2004]. Arched dorsal part of each of the anterior five abdominal somites (Fig. 1). (Pl. terga) [Perez Farfante and Kensley, 1997]. Dorsal part of exoskeleton comprising tergites of all body somites… … Crustacea glossary