OGMORHINUS. 199 



base to apex. Post-canines with three pointed cusps ; 

 the middle the largest and recurved at the tip, the 

 smaller inclined towards the middle. Superior 

 maxilla with extensive articulation with nasal. 



1 . Skull. Length 12f inches, over vertex 15} inches ; breadth, 



zygomatic 6| inches, cranial 5^ inches. Mandible, 

 length 9| inches ; characters as in No. 1. See Turner 

 in CJtallenger Report on Seals. 

 Wellington Harbour, New Zealand. 



Donor — Sir James Hector, K.C.M.G. 



2. Skeleton, disarticulated, adult male. Length something 



more than 8 feet. Vertebral formula C^Dj^LgSgCdg, 

 imperfect. Fifteen pairs of ribs. Scapula plate-like ; 

 post-spinous a third larger than pre-spinous ; axillary 

 border falcate, acromion rudimentary, coracoid a 

 tubercle; length between angles 10} inches, glenoido- 

 vertebral 8 inches. Humerus 6f inches ; no supra- 

 condyloid foramen. Length of ulna 7} inches, radius 

 6h inches. Pelvic bone 8} inches long, iliac crest 

 scarcely everted ; femur 5} inches long ; tibia and 

 libula fused at upper end, length of each 10 inches ; 

 sternum incomplete. Skull, length 15| inches, over 

 vertex 18 i inches ; breadth, zygomatic 8f inches, 

 cranial 5i inches. Mandible 12 inches long, thick, 

 elono-ated, not everted, no angle. 

 From Scottish National Antarctic Expedition. 



Donor — Dr W. S. Bruce. 



(2) Ogmorhinus carcinophagus. (Og. c.) 



(Crab-eating or Saw-tootlied Seal, Soiitherii and Antarctic Oceans.) 



Phoca carcinophaga. Hombron and Jacquiitet, Voy. Pole 



Sud, Atlas, Mam., 1842, 1853. 

 Lobodon carcinophaga. Gray, Zool. Voy. Erebus and Terror, 



1844. 

 Stenorhynchus serridens, Oioen, Ann. Mag. Nat. Hist., 1843. 



Superior maxilla with limited articulation to nasal. 

 Post-canines much longer than in leptonyx, one cusp 

 recurved, elongated, somewhat bulbous at apex, with 

 a small cusp in front, and one, two, or three behind. 

 Mandible with distinct angle and rudimentary sub- 

 condyloid process, symphysis greatly elongated. 

 Skull not so elongated as in leptonyx. 



