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Burmeister's porpoise (Phocoena spinipinnis) is a species of porpoise endemic to the coast of South America. [1] It was first described by Hermann Burmeister , for whom the species is named, in 1865.
Owen compared the skull to those of the long-finned pilot whale (Globicephala melas), beluga whale (Delphinapterus leucas), and Risso's dolphin (Grampus griseus)–in fact, he gave it the nickname "thick toothed grampus" in light of this and assigned the animal to the genus Phocaena (a genus of porpoises) which Risso's dolphin was also assigned ...
Spectacled porpoise: circumpolar in cool sub-Antarctic and low Antarctic waters Phocoena phocoena: Harbour porpoise: cooler coastal waters of the North Atlantic, North Pacific and the Black Sea Phocoena sinus: Vaquita: northern area of the Gulf of California, or Sea of Cortez Phocoena spinipinnis: Burmeister's porpoise: coast of South America
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Little is known about the diets of other species of porpoises. A dissection of three Burmeister's porpoises shows that they consume shrimp and euphausiids (krill). A dissection of a beached Vaquita showed remains of squid and grunts. Nothing is known about the diet of the spectacled porpoise. [18]
As with other porpoise species, the spectacled porpoise has no beak. It has small pectoral fins with rounded tips positioned far forward on the body, and a triangular dorsal fin. This porpoise species shows obvious sexual dimorphism between adult males and females, as the dorsal fins in males are much larger and more rounded than those of ...
The porpoises are identified through their pigmentation, scars, and fin notches and so far the group have built up a catalogue of over 200 individuals.