_S. plumbea_: Malabar coast of India; about 8 feet; very long snout. _S. borneensis_: Gulf of Siam to Sarawak in Borneo. _S. sinesis_: Chinese White Dolphin. The Fresh Water Dolphins. Genus _Platanista_ _P. gangetica_: The Susu or Gangetic Dolphin; about 8 feet; snout and beak drawn into long forceps-like beak, 7 or 8 inches long; confined to River Ganges and River Indus. It is almost blind. Genus _Inia_ _I. geoffrensis_: Amazonian Dolphin or Boutu. Upper Amazon; 7 feet; long beak. Genus _Pontoporia_ _P. blainvillei_: La Plata Dolphin. Estuary of Rio de la Plata; about 5 feet. Genus _Lipotes_ _L. vexillifer_: Chinese River Dolphin. Ting Ling Lake, 600 miles up the Yang-tse River; 7 feet 6 inches; slightly upcurved jaws. The Porpoise The small beakless Delphinidae, which have a triangular dorsal fin and spade-shaped teeth, black above and white below; travels in large schools. The word “porpoise” is derived from the French _porc-poisson_, “pig-fish.” Never larger than 6 feet. Genus _Phocaena_ _P. phocaena_: The Common Porpoise. Chiefly North Atlantic and North Pacific; never larger than 6 feet. _P. spinipinnis_: Burmeister’s Porpoise. Rare. La Plata round Horn to Peru. _P. dalli_: Dall’s Harbor Porpoise. Very rare. Alaska; less than 5 feet. _P. truei_: True’s Porpoise. Japan; less than 5 feet. _P. dioprica_: River Plate to South Georgia. Genus _Neomeris_ _N. phocaenoides_: Finless Black Porpoise. Cape of Good Hope to Japan. Genus _Lissodelphis_ _L. peronii_: New Zealand and Tasmania; about 6 feet. _L. brealis_: North Pacific; about 8 feet. The Right Whale Dolphins The Whales with Teeth The toothed whales are big dolphins, and are on the average much smaller than the Whalebone or Baleen toothless Whales. Family Physeteridae Subfamily Physeterinae Genus _Physeter_ _P. catodon_: The Sperm Whale or Cachalot. All oceans. Male may reach 60 feet, the female usually half the length of the male. This is the whale that has suffered the relentless persecution of whalers, always a coveted prize on account of its spermaceti-permeated blubber, and its excretory ambergris. The most dangerous of whales. Subfamily Kogiinae Genus _Kogia_ _K. breviceps_: The Pigmy or Lesser Sperm Whale. Atlantic, Pacific, Indian, and Antarctic oceans; about 10 feet. Family Ziphiidae Genus: _Hyperoödon rostratus_: The Bottle-Nose Whale. North Atlantic, Mediterranean, South Pacific, and Antarctic; 20 to 30 feet. Genus: _Mesoplodon_: “The Cow Fish;” Atlantic, Pacific, and Indian oceans. Genus: _Ziphius_: The Two-Toothed Whale. All oceans. Genus: _Tasmacetus_: South Pacific. Genus: _Berardius_: Pacific. Family Monodontidae or Delphinapteridae Subfamily Delphinapterinae