544 



ARCTOCEPHALUS. 



FIG. LXXIX. GROUP OF FUR SEALS OR SEA-BEARS. 



510. townsendi (Arctocephalus], Merr., Proc. Biol. Soc. Wash., 1897, 



p. 178. 

 GUADALUPE FUR SEAL. 



Type locality. Guadalupe Island, coast of Lower California, 

 Mexico. 



Geogr. Distr. Guadalupe and San Benito Islands, coast of Lower 

 California, Mexico. 



Genl. Char. Skull: palate narrow, excavated; bullse flat; ascend- 

 ing arm of premaxilla short and thick; zygomatic root of maxilla 

 expanded broadly. Upper molars double-rooted, posterior upper 

 premolar incompletely double-rooted. 



Color. Skull alone preserved. 



Measurements. Basal length, 256; length of Hensel, 233; palatal 

 length, 120; post-palatal length, 125; zygomatic breadth, 151; length 

 of tooth row, 88; distance between canines, 22.5. 



There are but two species known belonging to the next genus, 

 the huge Sea-elephants of the islands off the coast of Upper and 



