In cirripeds (Balanomorpha), dependent projection on basal margin of tergum [Moore and McCormick, 1969].
(Subclass Cirripedia):
Barnacle plate feature: in unstalked form, calcareous projection of basal margin of tergum [Stachowitsch, 1992].
(Class Ostracoda):
Pendent projection from basal margin of tergum (sessile Cirripedia); also velate structure modified sa flattened spinelike projection in some dimorphic genera [McLaughlin, 1980].
(Class Ostracoda):
Type of valve sculpture: flattened, spine-like projection. Represents modified, wing-like (velate) structure [Stachowitsch, 1992].
Crustacea glossary. Natural History Museum of Los Angeles County. 2011.