Eumetopias jubatus

• Main Authors: Russell A. Mittermeier, Don E. Wilson
• Format: Other/Unknown Material
• Language: unknown
• Published: Lynx Edicions 2014
• Subjects: Biodiversity; Taxonomy; Animalia; Chordata; Mammalia; Carnivora; Otariidae; Eumetopias; Eumetopias jubatus; Bering Sea; Okhotsk; Bering Strait; Pacific; Kamchatka; Kamtschatka; Alaska
• Online Access: https://zenodo.org/record/6604429; https://doi.org/10.5281/zenodo.6604429

13. Steller Sea Lion Eumetopias jubatus French: Otarie de Steller / German: StellerSeelowe / Spanish: Ledn marino de Steller Other common names: Northern Sea Lion, Steller's Sea Lion; Loughlin’s Northern Sea Lion (eastern population); Western Steller Sea Lion (western population) Taxonomy. Phoca jubata Schreber, 1776, “Aufenthalt in dem nordlichen Theil des stillen Meeres.westlichen Kuste von America.ostlichen von Kamtschatka. Inseln. Kasten unter dem 56ten Grade der Breite liegen” (north part of the Pacific Ocean, Commander and Bering islands). Although no subspecies of E. jubatus are recognized in the traditional taxonomy, there is agreement that there are at least two Distinct Population Segments (DPS’s), a Western and an Eastern, with a dividing line between them at 144° W in south-central Alaska. Two subspecies (jubatus for the western population and monteriensis for the eastern) were proposed in several papers that aligned with established DPS’s and are gaining support. Monotypic. Distribution. N Pacific from C California N to Alaska and the Aleutian Is chain W to Bering Strait and Kamchatka, and S along the Kuril Is to N Japan, including Bering Sea, Sea of Okhotsk, and Sea ofJapan; occasionalvisitor to the Korean Peninsula and China. Descriptive notes. Total length up to 330 cm (males) and 250 cm (females); weight 1000 kg, but up to 1120 kg (males) and 273 kg (females). Newborns are 100 cm and 18-22 kg. Dental formula I 3/2, C 1/1, PC 5/5 (x 2) = 34, with a diastema (gap) between the last upper post-canines. Steller Sea Lions are the largest of all otariids. Males and females are heavily built, and mature males have three times the weight of females and are 20-25% longer. Males have mane of guard hairs from head to shoulders and are very muscular in that area. Forehead of adult males is pronounced by sagittal crest on skull—a feature lacking in adult females and juveniles. Relative to massive heads of both sexes, eyes and ear pinnae appear small. Muzzle is thick and blunt, and pale vibrissae are long and ...