Definitions
Pterygostomial spine
- (Taxon-specific: Order Decapoda) See: Carapace spines g [McLaughlin, 1980]
- (Taxon-specific: Order Decapoda) In shrimp-like (natantian) decapod, anteriorly directed, spine-like projection located below branchiostegal spine on anterolateral corner or carapace. [Stachowitsch, 1992]