Definitions
Pterygostomial region
- Anteroventral region of carapace (anterior part of branchiostegite of Caridea) or ventral region of carapace (of Brachyura); bearing pterygostomial spine at anteroventral angle (in Caridea and Dendrobranchiata). [Poore, 2004]
- See: Carapace regions k [McLaughlin, 1980]
- On ventral side of carapace, one of two anterolateral regions flanking buccal cavity. [Stachowitsch, 1992]