Adult males reach an average length of 1.9 meters and mass of 150 – 200 kg. Their fur is blackish gray, with a mane of long guard hairs on the shoulder and neck area. The build of the male is proportionally broader in the shoulders than the female. Adult females average about 1.4 meters in length and a mass of 30 – 60 kg. Female and subadult fur is grayish black on the back and lighter on the ventral side. Newborn pups are all black. In general, these seals have a stocky build with a flat-topped, pointed muzzle and creamy white vibrissae. Ear pinnae are prominent. Dental formula 3/2, 1/1, 6/5. (Reeves, et al. 1992, Jefferson, et al. 1994, Nowak 1999)
Range mass: 30 to 200 kg.
Average mass: 110 kg.
Range length: 1.4 to 1.9 m.
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