1. PLATANISTA.

Platanista, Gray, l. c. p. 221; Synops. Whales & Dolph. p. 4.

Vertebræ 51: cervical 7, all separate; dorsal 11; lumbar 8; caudal 25.

1. Platanista gangetica.

Platanista gangetica, Gray, l. c. p. 223; Synops. Whales & Dolph. p 4.

Inhab. India, Ganges.

2. Platanista Indi.

Platanista Indi, Gray, l. c. p. 224; Synops. Whales & Dolph. p. 4.

Inhab. India, Indus.

Division II. Nostrils both united into a single central transverse or crescent-shaped blower on the back of the crown (cf. [p. 57]).