#astaciform
- Astaciform — Having the shape, appearance, or anatomical structure resembling that of a crayfish (of the genus Astacus); a morphological adjective used in biology to describe the exterior appearance of certain fossil or contemporary crustaceans presenting a robust cephalothorax, segmented abdomen, and prominent claws.
- Astacoid — Resembling a crayfish or the species of the Astacus genus in form, structure, or general appearance; a morphological adjective used to describe fossil specimens, crustacean larvae, or external anatomical characters (such as the carapace or claws) reminiscent of the river crayfish's structural configuration.