Supplement to the catalogue of seals and whales in the British Museum

by John Edward Gray

Inhab. British Guiana.

Teeth 28 or 29. Pectoral fin very broad: fingers five; the index the longest, the thumb and little finger the least developed. The caudal vertebræ very strong. The first two of the cervical vertebræ united, the five others separate. Sternum in three pieces.

Tribe II. DELPHININA.

Delphinina, Gray, Synops. Whales & Dolph. p. 5.

Head beaked. Teeth conical. Beak of the skull elongate, longer than the brain-cavity, depressed, broad, shelving on the sides. Nasal triangle short. Symphysis of the lower jaw very short, sloping. Dorsal fin subcentral, rarely wanting.

a. Beak elongate. Palate with a deep groove on each side behind.

3. DELPHINUS.

Delphinus, Gray, l. c. pp. 230, 239, 393; Synops. Whales & Dolph. p. 5.

Beak elongate. Dorsal fin distinct. Teeth small, slender, five or six in an inch. Fingers elongate, unequal; the second much the longest, 8- or 9-jointed; third elongate, about three-fourths the length; the rest short.

Fœtus and tongue figured, t. 26. f. 2 of Synops. Whales and Dolph.