Definitions
Depressor muscle
- In Cirripedia (Balanomorpha), muscle inserted at basicarnial angle of tergum, for which depressor muscle crests are usually developed. [Moore and McCormick, 1969]
- Muscle inserted at basicarinal angle of tergum (balanomorph Cirripedia). [McLaughlin, 1980]
- The muscle which moves the limb downwards by rotating it about the CB joint. [Warner, 1977]
- (Taxon-specific: Subclass Cirripedia) In stalked barnacle, one of several paired muscles spanning from tergum and scutum to basis; serves in closing aperture. [Stachowitsch, 1992]