The Hourglass Dolphin's scientific name is Lagenorhynchus cruciger. The hourglass dolphin lives in the Antarctic and Sub Antarctic waters. The Hourglass Dolphin is rarely ever seen.
The scientific name for an Orca is Orcinus Orca. Orcas are found in coastal waters, Orcas are also abundant along northern Norway's coast in the Atlantic and in the higher latitudes of the Southern Ocean. A male Orca weighs from 8,000 – 12,000 lbs. The female Orca weighs from 3,000 – 6,000 lbs. Some people consider the Orca a dolphin.
The scincetific name for the Chinese White Dolphin is Sousa Chinensis. The Chinese white dolphin inhabits the Indian and Pacific oceans from the southern coast of China in the east to eastern coast of Australia, including Indochina and part of the Indian Ocean. Chinese white dolphin can reach 6 to 13 inches in length and 330 to 510 lbs. Chinese white dolphins are black at birth. Young Chinese White Dolphins are grey with pink speckles.