CERVICAL NOTCH
Strong indentation of carapace at level of cervical groove (e.g., scyllarid palinurans). (Syn. cervical incision) [Moore and McCormick, 1969].
Strong indentation of carapace at level of cervical groove [McLaughlin, 1980].
(Order Cladocera):
Transverse groove between head and trunk (with/without conspicuous folds). (Syn. cervical sinus) [Stachowitsch, 1992].
(Order Decapoda):
On dorsal surface of carapace, strong indentation at level of cervical groove. (Syn. cervical incision) [Stachowitsch, 1992].