88 Annals of the Carnegie Museum. 



a few unsatisfactory remains. To the right, a rib-like projection from 

 the posterior cervical region is evidently the clavicle (j) and a doubtful 

 impression below it is probabl}^ the shoulder-blade. There are 

 vestiges of a coracoid and scapula on the left side of the body. The 

 shoulder girdle was evidently ossified. 



In close association with the lemains of the light shoulder-blade, 

 are the two shoit and blunt cervical ribs. There are some seventeen 

 pairs of sternal and abdominal ribs. Anteriorly they are smooth, 

 much the same as in Sphenodon. Posteriorly they are considerably 

 shorter than those in the middle of the body, are not so broad, and 

 are nearly equal in extent to five dorsal vertebrae. As far as could 

 be determined, all the ribs have solitary, broad, compressed, and 

 acuminate extremities. 



Pelvic Girdle. — The pelvic girdle (k) is only to be distinguished by 

 the impression it has produced on the surrounding matrix. It is 

 approximately four-fifths of the width of the cranium. The obturator 

 foramen (/) was quite small, having a width one-fourth of that of the 

 pelvis. 



Fore- Limbs. — The fore-limbs are quite weak in proportion to the 

 rest of the body, and are shorter and not nearly so strong as the hind- 

 limbs. The humerus is very broad in its distal portion, but an 

 ectepicondylar foramen is not visible. The radius and ulna are pro- 

 portionally large, curved slightly inward, and are approximately the 

 same length. On both members of the fore-limbs, the carpals, meta- 

 carpals, and digits are so obscure, that description is impossible 

 beyond stating that they are unusually fragile for a reptile of the size 

 they support. 



Hind- Limbs. — The proximal portion of the femur is long and curved 

 as judging from the impression. It is connected with the distal portion 

 by a large shaft increasing in size toward that end. The tibia and 

 fibula are both strong bones, the former being somewhat stouter than 

 the latter. Both tarsals and metatarsals in either foot are too obscure 

 for further remark. Five toes are present, the number of the pha- 

 langes of which are 2, 3, 4, 5, and 4, respectively. The digits are of 

 delicate construction and the claws of the hind-feet are longer than 

 those of the fore-feet. 



