- apertural spine
- (Subclass Cirripedia):In acrothoracican, spine-like structure protecting aperture. (See also apertural hook) [Stachowitsch, 1992].
Crustacea glossary. Natural History Museum of Los Angeles County. 2011.
apertural spine
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apertural hook — (Subclass Cirripedia): In acrothoracican, hook like structure protecting aperture. (See also apertural spine) [Stachowitsch, 1992] … Crustacea glossary