apertural spine
(Subclass Cirripedia):
In acrothoracican, spine-like structure protecting aperture. (See also apertural hook) [Stachowitsch, 1992].

Crustacea glossary. . 2011.

Look at other dictionaries:

  • apertural hook — (Subclass Cirripedia): In acrothoracican, hook like structure protecting aperture. (See also apertural spine) [Stachowitsch, 1992] …   Crustacea glossary

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