porpoise(redirected from Harbour Porpoise)
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Related to Harbour Porpoise: Dall's Porpoise, Finless Porpoise
the smallest cetacean, 6 ft long weighing 100 lb, black on top, white belly, piscivorous and an excellent swimmer. The common porpoise is Phocaena phocaena. There are other species, e.g. P. sinus (Pacific harbor porpoise).