Taxonomy of Finfish (1+2)

RHINA ANCYLOSTOMA

Rhina ancylostoma Bloch and Schneider,1801-Shark ray

Classification:

Phylum: Chordata

Class: Chondrichthyes

Subclass : Elasmobranchii

Order Rhinobatiformes

Family : Rhinidae- Wedgefishes

Genera : Rhina Species : R. ancylostoma

• Snout and anterolateral edges of prepectoral head broadly rounded, with a deep indentation separating it from pectoral-fin origin on each side;
• orbits, middorsal line, and shoulders with prominent ridges bearing clusters of small, medium-sized, and large triangular thorns or spines, the large spines on the midback triangular and erect like saw
• teeth,
• the shoulder spines on 2 prominent ridges; spiracular folds absent;
• pectoral and pelvic fins high and angular; caudal fin almost lunate, with preventral margin nearly as long as dorsal margin