porpoise

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Related to Phocoena: Phocoena phocoena, Harbour Porpoise

porpoise,

small whalewhale,
aquatic mammal of the order Cetacea, found in all oceans of the world. Members of this order vary greatly in size and include the largest animals that have ever lived. Cetaceans never leave the water, even to give birth.
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 of the family Phocaenidae, allied to the dolphindolphin,
aquatic mammal, any of the small toothed whales of the family Delphinidae, numbering more than 50 species. These include the true, or beaked, dolphins, the killer whale, the pilot whale, and the freshwater species found in rivers of South America and S and E Asia.
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. Porpoises, like other whales, are mammals; they are warm-blooded, breathe air, and give birth to live young, which they suckle with milk. They are distinguished from dolphins by their smaller size and their rounded, beakless heads. Porpoises are 4 to 6 ft (120–180 cm) long and are black above and white below. Traveling in schools, porpoises prey on fish, often pursuing them long distances up rivers.

The finned porpoises, species of the genus Phocoena, have a dorsal fin. They are distributed throughout the world and include the harbour, or common, porpoise, P. phocoena, found throughout the Northern Hemisphere. The vaquita, P. sinus, found only in the N Gulf of California, Mexico, is the smallest and most endangered species. The finless porpoises, genus Neophocaena, are found in the Indian and W Pacific oceans and in the Chang (Yangtze) River.

The fat of the porpoise yields a lubricating oil, and the flesh is sometimes eaten. In North America the dolphins (family Delphinidae) are sometimes called porpoises and the bottle-nosed dolphin is sometimes called the common porpoise. True porpoises are classified in the phylum ChordataChordata
, phylum of animals having a notochord, or dorsal stiffening rod, as the chief internal skeletal support at some stage of their development. Most chordates are vertebrates (animals with backbones), but the phylum also includes some small marine invertebrate animals.
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, subphylum Vertebrata, class Mammalia, order Cetacea, family Phocoenidae.

Bibliography

See W. N. Kellogg, Porpoises and Sonar (1961); K. S. Norris, ed., Whales, Dolphins and Porpoises (1966) and, as author, The Porpoise Watcher (1974); R. Ellis, Dolphins and Porpoises (1989).

What does it mean when you dream about a porpoise?

See Dolphin.

porpoise

[′pȯr·pəs]
(vertebrate zoology)
Any of several species of marine mammals of the family Phocaenidae which have small flippers, a highly developed sonar system, and smooth, thick, hairless skin.

porpoise

1. any of various small cetacean mammals of the genus Phocaena and related genera, having a blunt snout and many teeth: family Delphinidae (or Phocaenidae)
2. any of various related cetaceans, esp the dolphin
References in periodicals archive ?
Genetic structure of harbour porpoise Phocoena phocoena populations in the northwest Atlantic based on mitochondrial and nuclear markers.
phocoena does occur in Azorean waters and has possibly evaded detection so far because of low numbers.
Se examinaron pulmones de dos carcasas frescas de adultos (macho y hembra) de Phocoena spinipinnis, capturados, accidentalmente, el 8 de junio de 1994, y el 7 de mayo de 1997, por pescadores artesanales en el litoral de la Reserva Nacional de Paracas y desembarcados en el muelle pesquero de San Andres, Pisco (13[grados]44'00"S - 76[grados]13'29"W).
Pile driving zone of response extends beyond 20 km for harbor porpoises (Phocoena phocoena (L.
Algunos helmintos de la marsopa espinosa, Phocoena spinipinnis de la Reserva Nacional de Paracas, Peru.
Cuvier Delfin de dientes rugosos in Lesson, 1828) 500 Tursiops truncatus (Montagu, Delfin pico de botella 1821) Phocoenidae 501 Phocoena spinipinnis Marsopa espinosa, chancho marino Burmeister, 1865 Physeteridae 502 Kogia breviceps (Blainvule, Cachalote de cabeza pequena 1838) 503 Kogia sima (Owen, 1866) Cachalote enano 504 Physeter catodon Linnaeus, Cachalote 1758 Iniidae 505 Inia geoffrensis (Blainville, Bufeo colorado 1817) Ziphiidae 506 Mesoplodon grayi Von Haast, Ballena de pico de Gray 1876 507 Mesoplodon peruvianus Reyes, Ballena de pico peruana Mead, y Van 507 Waerebeek, 1991 508 Ziphius cavirostris G.
Accidental or intentional entrapments in fisheries have afforded some opportunities to examine blood constituents in harbor porpoises, Phocoena phocoena (Nielsen and Andersen, 1982; Koopman et al.
Contract notice: selecting a contractor for field observation of cetaceans tursiops truncatus, phocoena phocoena and delphinus delphis in bulgarian exclusive economic zone (eez) in the black sea.
Hospedero: Phocoena spinipinnis Burmeister, 1865 "marsopa espinosa".
Ringed seal Phoca hispida Harp seal Pagophilus groenlandicus Fin whale Balaenoptera physalus Minke whale Balaenoptera acutorostrata Narwhal Monodon monoceros Beluga Delphinapterus leucas Harbour porpoise Phocoena phocoena Greenland halibut Reinhardtius hippoglossoides Atlantic cod Gadus morhua Greenland cod Gadus ogac Arctic char Salvelinus alpinus Atlantic Salmon Salmo salar Lumpfish Cyclopterus lumpus Redfish Sebastes marinus Catfish Anarhichas lupus/minor Capelin Mallotus villosus Brunnich's guillemot Uria lomvia Common eider Somateria mollissima Black guillemot Cepphus grylle Little auk Alle alle Caribou Rangifer tarandus groenlandicus Muskox Ovibos moschatus Mean food preference ratings of 1580 Greenland Inuitin 1993-94, showing comparisons of two age groups (18-24v.