Ichthyological terms, not general ones.
Any of the bony processes located on the gill arch which function to either retain food items or otherwise prevent solid matter from entering the gill chamber. Vary in number and size depending on taxon and therefore useful in identification.
Used in 88 profiles
Bony or cartilaginous arch in the pharynx to which the gill filaments and rakers are attached.
Used in 162 profiles
Present in some microphagous fishes and comprises a paired dorsal diverticulum located towards the posterior of the pharynx. In the majority of species it's divided into two sections by additional gill rakers which trap small food particles.
A countable trait, e.g., the number of rays in a fin, gill rakers, lateral line scales, etc..
Used in 4 profiles