Surface architecture of the mouth cavity of Pagellus affinis (Boulenger, 1888)

Abstract

The topological characteristics of the mouth cavity of the carnivorous fish Pagellus affinis was studied by using light
microscope. The results revealed that all the teeth of P. affinis are pointed and canine-like, papilliform teeth present
on the premaxillae and the anterior regions of the dentaries are associated with seizing, grasping and holding of prey.
The morphology and distribution of different taste buds of P. affinis were predominantly localized at the anterior and
tongue regions of the mouth cavity. Two types of taste buds are elevated from the epithelium at different levels,
which may be useful for ensuring full utilization of the gustatory ability of the fish, detection and analyzing of taste
substances, as well as for assessing the quality and palatability of food, during its retention in the mouth cavity.
Observations of the surface architecture of the mouth cavity of P. affinis are discussed within the context of feeding
and habitat preferences as well as ecomorphological adaptation of the species