rhinobatidæ

from The Century Dictionary.

• A family of selachians, typified by the genus Rhinobatus; the shark-rays or beaked rays. They are shark-like rays, whose trunk gradually passes into the long strong tail, which is provided with two well-developed dorsal fins, a caudal fin, and a conspicuous dermal fold on each side. The rayed part of the pectoral fins is not extended to the snout. Three to five genera are recognized, with about 15 species, of warm seas.