X-Ray radiological study for skeleton of rounded fantail stingray taeniura grabata from susah, Libya

الملخص EN

A sample of Round Fantail Stingray Taeniura grabata was brought, from Susah harbor in east Libya, to establish radiographically, it was situated Dorsal-ventrally, to diagnose skeleton and tooth plate, using Siemens X-ray System (Multix Fusion).

In the Multi-graded radiograph, the specimen skeleton was so pale white in most of the axial skeleton and parts of the cranium, and poorly calcified.

88 pectoral radials: 41 propterygials, 15 mesopterygial, and 32 metapterygial radials, with 22 pelvic radials counted.

Fin radials were attached to the scapulocoracoid by three enlarged basal radials.

The superficial muscles were darker in coloration.

About 80 Pre- sting vertebrae, 50 Post-sting with 62 pre-caudal vertebrae, were collected into 192 vertebrae in the tail.

There were 32 upper teeth rows, and 36 lower teeth rows, they were small, blunt, and arranged into flattened surfaces.

The neurocranium is slightly elongated, longer than 1.5 times in width.

Nasal capsules process about 30% of neuro- cranial desk length.

Meckel's cartilages were broadly triangular.

The bronchial skeleton comprises five arches.

Also, a single small bridge project ventrally from the medial plate.

Jaws are very robust and small.