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Guadalupe fur seal Arctocephalus townsendi (Merriam, 1897) Size: Habitat: Diet: LC Juan Fernández fur seal Arctocephalus philippii (Peters, 1866) Size: Habitat: Diet: LC Galápagos fur seal Arctocephalus galapagoensis (Heller, 1904) Galápagos Islands: Size: Male: 150–160 cm (59–63 in) long; 60–68 kg (132–150 lb)
The Juan Fernández fur seal (Arctocephalus philippii) is the second smallest of the fur seals, second only to the Galápagos fur seal. They are found only on the Pacific Coast of South America, more specifically on the Juan Fernández Islands and the Desventuradas Islands. There is still much that is unknown about this species.
Adult Guadalupe fur seals are dark brown or dusty gray with yellowish silver manes, called guard hairs, on the back of the neck. [3] Guadalupe fur seals are sexually dimorphic in size, as males are much larger and heavier than females; males can grow to about seven feet in length and weigh upwards of 400 pounds, while females are typically only five feet long and weigh about 110 pounds. [4]
Nonetheless, all fur seals have certain features in common: the fur, generally smaller sizes, farther and longer foraging trips, smaller and more abundant prey items, and greater sexual dimorphism. For these reasons, the distinction remains useful. Fur seals comprise two genera: Callorhinus, and Arctocephalus.
Five pinniped species, clockwise from top left: New Zealand fur seal (Arctocephalus forsteri), southern elephant seal (Mirounga leonina), Steller sea lion (Eumetopias jubatus), walrus (Odobenus rosmarus), and grey seal (Halichoerus grypus) Combined range of all pinnipeds
Anatomical information for the southern fur seals, Arctocephalus spp., is scant. [8] In addition, little is known about the foraging ecology of South American fur seals. Recent tracking studies reveal that South American fur seals breeding at the Falkland Islands use a vast area of the Patagonian Shelf. [9] [10]
Arctocephalus forsteri (common names include the Australasian fur seal, [3] South Australian fur seal, [4] New Zealand fur seal, [5] Antipodean fur seal, or long-nosed fur seal) is a species of fur seal found mainly around southern Australia and New Zealand. [1]
The brown fur seal is the largest and most robust member of the fur seals. It has a large and broad head with a pointed snout that may be flat or turned up slightly. [ 3 ] They have external ear flaps ( pinnae ) and their whiskers ( vibrissae ) are long, possibly growing back past the pinnae, especially in adult males.