Règne :
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Animalia
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Embranchement :
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Chordata
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Classe :
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Mammalia
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Ordre :
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Cetartiodactyla
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Famille :
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Delphinidae
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Genre :
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Sousa
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Espèce :
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teuszii
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Nom Français : |
Dauphin à bosse de l'Atlantique
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Nom Vernaculaire : |
Atlantic hump-backed dolphin
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Description :
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Atlantic humpbacked dolphins belong to the family Delphinidae. They are gray in color with some lighter speckled markings along the ventral surface. These dolphins are characterized by, and named for, their uniquely elevated and rounded dorsal fin, which is referred to as a "hump-back." Atlantic humpbacked dolphins have a very large melon, rounded flippers, and a long pronounced beak. Adults weigh between 100 and 150 kg and are generally between 2 and 2.5 meters in length. Like most cetaceans, they have homodont dentition (i.e., no differentiation along the tooth row). A distinguishing feature of this species is the number of vertebrae, which is less than that of its sister species, Indo-Pacific humpbacked dolphins. This, along with the number of teeth (26 to 31 pairs), and the species' geographic range, help taxonomists distinguish between Atlantic humpbacked dolphins and Indo-Pacific humpbacked dolphins.
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Auteurs & dates :
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Sousa teuszii (Kükenthal, 1892)
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Recherche des images :
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Photo
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