Common porpoise,
Harbor porpoise,
Puffing pigs
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Also known as:
Common Porpoise, Puffing Pig
Sexual Dimorphism:
Females are 10%-20% larger than males.
meerschwein, although the word is commonly used by sailors to designate all the smaller cetaceans, especially those numerous species which naturalists call "dolphins," it is properly restricted to the common porpoise of the British' seas (Phocaena ...
They are distributed throughout the world and include the common porpoise, Phocaena phocaena, found throughout the Northern Hemisphere. The finless porpoise, Neomeris phocaenoides, is found in the Indian and W Pacific oceans.
The harbor porpoise, Phocoena phocoena (Linnaeus, 1758), aka common porpoise, is a small cetacean with a rotund, stocky body that tapers toward the tailstock. This porpoise reaches a maximum length of 1.9 m and maximum weight of 90 kg.
It resembles the common porpoise. The main body color is gray, darker above than below and also around the eyes and mouth. There is a dark stripe from the chin to the base of the flipper.
The Harbor Porpoise (Phocoena phocoena) is the most widely seen porpoise, sometimes earning it the nickname "common porpoise." The Harbor Porpoise belongs to the Cetacean family, a division of water-dwelling mammals that must breathe oxygen.
The species is sometimes known as the Common Porpoise in texts originating in the United Kingdom, though this usage appears to be dying out.[citation needed]
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The vaquita is the smallest living cetacean, closely resembling the common porpoise. However, the pectoral fins of this species are longer, and the dorsal fin taller in proportion to the body length, than in other species of porpoise.
 See also: Porpoise, Dolphin, Whale, Harbor Porpoise, Puffin
  
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