19 



Lower jaw, complex teeth . . . 1 + 1=2 

 „ alveolar edge, simple teeth 14 +14 = 28 



30 



No. 1 Skeleton. 



Weight of animal .... 





oz. 

 6 



Measurement, 







Snout to cloaca ..... 

 Cloaca to tip of tail . . . 



in. 



7 

 7 



lines. 

 6 

 



Total length 



. 1 2 



6 



VERTEBRJE. 







Cervical ....... 



Sternal ...... 



Abdominal ...... 



Lumbar . . . . 



Sacral ....... 



Coccygeal ...... 



• 



8 



3 



11 



3 



2 

 23 



Total number . 



• 



, 50 



No. 2 Skeleton. 







Weight of animal .... 



oz. 

 6 



grs. 

 120 



Measurement. 







Snout to cloaca ..... 

 Cloaca to tip of tail 



in. 



7 

 8 



lines. 



Hi 



Total length . . . .14 6 



vertebrae. 



Cervical ......... 8 



Sternal . . ....... 3 



Abdominal . . . . . . . .11 



Lumbar . . . . . . . . 3 



Sacral . . . . . . . .2 



Coccygeal . . . . . . . .36 



Total number . . . . . 63 



Weight of skeleton . . . .306 grains. 



Remarks. — The hcemapophyses (V-shaped bones) I observe, throughout the 

 whole spinal column, connected with the inter-articular cartilages ; in neck, 

 rudimentary (but formed of three points of ossification), disappearing along the 



