172 SPECIMENS OF PINNIPEDIA. 



long ; ulna 10 inches, with large olecranon. Manus 

 pentadactylous, digits diminish in length from hallux 

 to minimus ; carpus with radiale and intermedium 

 fused, ulnare, four distal carpalia. Pelvic bone 10 

 inches long, crest directed forwards and outwards ; 

 femur 5 inches long ; tibia and iibula fused together 

 at upper end, tibia 10 inches long, fibula 9| inches. 

 Pes, five digits almost equal in length, tarsalia eight 

 bones, the eighth being an entoscaphoid situated at 

 inner border and articulating with scaphoid and 

 ento-cuneiform. The entoscaphoid represents the 

 tubercle of the human scaphoid, which sometimes 

 persists as a separate bone. The hyoid apparatus 

 consists of basi-hyoid, a pair of cerato-hyoids, a pair 

 of thyro-hyoicls, epi-hyoids, and stylo-hyoids ; the ele- 

 ments of the hyoid proper are united by movable 

 joints, the others by intermediate cartilages. Skull, 

 zygomatic breadth 7 inches, cranial 4 inches ; sagittal 

 and occipital crests moderate ; face elongated in front 

 of the cranium, constricted between cranium and the 

 post-orbital process, being pinched in laterally ; nasals 

 more elongated than in Gillespie's Seal ; hard palate 5 

 inches long, anterior part concave, posterior flattened, 

 lateral borders almost parallel ; posterior border 

 scooped out, well in front of the hamular pterygoids ; 

 tympanies roughened. Mandible 8| inches long, with 



a broad coronoid process. Dentition, post-canine ^ ^ , 



with cingulum, large central cusp, small anterior and 

 posterior cusps, teeth set obliquely in sockets. Skull 

 described by Turner in CJiallenger Reports, part Ixviii., 

 1887. 

 Victoria, Australia. Purchased. 



2. Skull of a young female. Length 8 inches, over vertex 



10| inches ; breadth 4| inches ; palate 3^ inches long, 



a little concave, not reaching pterygoids. Mandible 



.66 

 ^\ inches long. Dentition, post-canine ^ - . 



Victoria. Purchased. 



(4) EUMETOPIAS HOOKERI. (Eu. H.) 



(Hooker's or Auckland Island Hair Seal.) 

 Arctocephalus hookeri. Gray, Voyage Erebus and Terror, 1844. 

 Otaria hookeri, Peters, Monatsb. Preuss. Akad. d. Wissen., 

 Berlin, 1867. 



