108 STUDIICS OF TASMANIAN CETACEA, 



rod is sloped to touch both jaws. The following notes 

 upon the skeletons of the adult sexes will aid the stu- 

 dent in the determination of fragmentary elements and 

 even single bones. 



COMPARATIVE CERVICAL VERTEBRA. 



Measurement Made. Male. Female. 



in. in. 



Width across the processes of the axis 6f ... 6^ 



Total length of cervical series 3 J ... 3j 



Width across centrum of cervical No. 7 2| ... 2 



Vertical measurement of same 2f ... If 



DORSAL VERTEBRA. 



Measurement Made. Male. Female. 



in. in. 



Greatest height of dorsal No. 6 along angle 



subtended by the spine 5| ... 5| 



Across diapophyses of same 5| ... 4f 



LUMBAR VERTEBRAE. 



Measurement Made. Male. Female. 



in. in. 

 total length of lumbars, 6, 1, 8, 9, 10, 11, 



12, 13, 14 ... 151 ... 12i 



Greatest width aqross diapophyses 12^ ... 9g: 



Greatest height of neural spine 6| ... 5i 



Greatest length of body of vertebra Ij ... li 



SCAPULAE. 



Measurement Made. Male. Female. 



in. in. 



Greatest scapular height 7 J- ... 6^ 



Greatest scapular width 12 ... 8| 



ARM BONES. 



Measurement Made. Male. Female. 



in. in. 



Length of humerus 3| ... 3^^ 



Length of radius 4^ ... 4J 



Length of ulna (including the olecranon pro- 

 cess) 3^ ... 3^ 



Width of radius and ulna (distal) 3| ... 3^ 



Vertebral formula. Cervicals 7, the first two fused 

 to extinction in all sikeletons handled by us. Dorsals 13. 

 Lumbars 17. Candals 28. Total 65. Ribs 13 paii-s, five 

 of which reach the sternum, which latter is always in a 

 single piece. 



