Morphological characterization of the oral cavity of the gilthead seabream (Sparus aurata) with emphasis on the teeth-age adaptation.

Gilthead sea bream with different age groups that collected from Seawater fisheries, Ismailia Governorate, Egypt, were examined by gross anatomy and scanning electron microscopy to assess the morphological characteristics of the oral cavity. Teeth patterns showed that the gilthead sea bream is adapted to the feeding pattern according to age development, as it modified from spiny form teeth in young fishes to obelisk-like teeth and flat dome-like teeth in growing fishes, with differentiation of teeth into three pairs of canine and conical teeth, that later differentiated to small and large flat teeth. With development, the apical pouch also showed morphological differentiation from curve-like in small fishes to Y-letter shape in medium-sized fishes, which later grow to completely covering the lower jaw in grown adult fishes.

Computed tomography and gross anatomical studies on the head of one-humped camel (Camelus dromedarius).

The current study aimed to document by computed tomography (CT) the anatomical structures of the one-Humped camel head relative to their adaptability to living environments. Seven adult one-Humped camels' heads were used in this study. The structures of the nasal cavity, paranasal sinuses, oral cavity, orbit, and cranium were investigated using computed tomographic scans, cross, and sagittal sections of the head cadavers, and skulls.

Morphological variations of the vallate papillae in some mammalian species.

The morpho-structural characteristics of the vallate papillae of the tongue of rat, dog, donkey and buffalo were investigated by macroscopy and their microstructure by light and scanning electron microscopy (SEM). The numbers of vallate papillae varied among the different species. In rat, a single vallate papilla surrounded by incomplete groove and an annular fold was observed.

Gill morphology in two Mediterranean Sea fishes of similar feeding preferences: sea bream (Sparus aurata L) and sea bass (Dicentrarchus labrax).

The aim of the present study was to describe the gill morphology of the gilthead sea bream and sea bass fishes that showed the same feeding habits. Our study focused on the gross morphological, scanning and light microscopical features of the gills, where a many differences in the gill arches and gill rakers surface in both species were explained. Our results marked that; there was an interbranchial median elevation appeared in sea bream.