LEPTONYCHOTES. 201 



1. Skeleton of a Weddell's Seal from Betsy Cove, Kerguelen, 



in 1874. The vertebral plates and the epiphyses of 

 the long bones not fused. Length of skeleton 5 feet 



9 inches. Vertebral formula C7D^5L5S2Cdji = 40. 

 Ribs, fifteen pairs, of which ten articulated with side 

 of sternum, which was 18i inches long and consisted 

 of ten segments. Scapula 4i inches between angles, 

 glenoido- vertebral 4| inches, with pre- and post- 

 spinous fossae almost equal ; coracoid and acromion 

 feeble. Humerus without supracondyloid foramen 4i 

 inches long ; radius 5 inches ; ulna 5^'^ inches. Manus 

 pentadactylous, radiale and intermedium fused, 

 ulnare, pisiform, four distal carpalia. Pelvic bone 

 7}y inches long, ilium with upper end in almost the 

 same plane as base of sacrum ; femur 3| inches long ; 

 tibia 8 inches; fibula about the same; pes penta- 

 dactylous, hallux and minimus the longest toes, 

 tarsus, with astragalus, calcis, scaphoid, cuboid, three 

 cuneiform. Skull ^)f^j inches long, over vertex 12 

 inches ; interzygomatic width 5y"^ inches, cranial 

 breadth 4| inches ; greatest width of anterior nares 

 1^ inch ; hard palate 3i inches long by 2| wide ; 

 mandible 5| inches long. Challenger Collection. 



2. Skeleton of a male collected by the Scottish National 



Antarctic Expedition, not adult, as the epiphj^ses were 

 imperfectly fused with their bones. Length about 



10 feet. Vertebral formula C^D^.L^S.^Cdjo = 39. 

 Fifteen pairs of ribs. Sternum with eight segments 

 present. Scapula plate-like ; diameter between angles 

 7f inches, glenoido-vertebral 6^ inches; pre- and 

 post-spinous fossse almost equal ; acromion rudi- 

 mentary ; coracoid a tubercle ; axillary border falcate. 

 Humerus imjDerfect ; radius and ulna with lower 

 epiphyses not united. Pelvic bone 10} inches long ; 

 iliac crest a little everted. Femur 5 inches long ; 

 upper and lower epiphyses almost fused. Tibia and 

 fibula fused at upper end ; lower epiphyses not fused 

 with shafts. Tarsalia, seven bones. Skull, length lOf 

 inches, over vertex ISh inches; breadth, zygomatic 

 6f inches, cranial 4f inches. Mandible, length 6f 

 inches ; subcondylar process a small tubercle, slightly 

 inverted, no angle. Donor — Dr W. S. Bruce. 



3. Uterus, two-horned. Corpus uteri 4| inches long; the 



cornua curve forwards and outwards for between 7 

 and 8 inches, the girth of each cornu where it 



