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Pacific white-sided dolphin - LAGENORHYNCHUS OBLIOUIDENS Possibly Endangered Class: Animals with Milk Glands (Mammalia) Subclass: True Mammals (Eutheria) Order: Whale-like Mammals (Cetacea) Family: Delphinidae.
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Pacific white-sided dolphins have a robust body and are also called "white-striped dolphins" because of the light stripe present on both sides of their bodies. Their mouths contain 84-130 sharp teeth that are slightly curved.
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Atlantic White-sided DolphinThe dolphin most likely to be seen on Stellwagen Bank trips is the Atlantic White-sided Dolphin.. Named for the white patch on its side, it has a gray ribbon like strip that extends from above the eye to the tail.
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The Atlantic white-sided dolphin can be found in the temperate and sub-polar regions of the North Atlantic, from West Greenland, Ic eland and the Barents Sea south to Cape Cod in the west and Ir eland and the North Sea in the East.
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White-beaked dolphins have similar habits to Atlantic white-sided dolphins, and live in similar cold-water regions of the North Atlantic. They eat fish, squid, octopus, and crustaceans. They are seen in small groups, but also in schools of 500.
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Some species, such as the white-sided dolphin, Lagenorhyncus obliquidens, make up aggregations estimated at tens of thousands of members. Less gregarious species, such as the bottle-nosed dolphin, join in groups that often contain only a few members.
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 See also: Dolphin, Whale, Porpoise, Humpback, Herring
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