60 



Annals of the Carnegie Museum. 



ulna. Each bone lends its proportional share to produce this result. 

 The shaft of the second metacarpal is, for the most i)art, cylindrical 

 in form, while its"anchylosed comjjanion is of very slender proi)ortions. 

 I find'^in Numeniiis and HcEmatopiis a delicate, curved and free claw- 

 joint, suspended from the distal end (Fig. 22, x). 



'J'here is an ample expanded portion springing from the posterior 



Fig. 22. Palmar aspect of right mamis of Xiinicniiis loiigirostris, showing also 

 distal extremities of radius and ulna, natural size. /•, radius ; //, ulna ; .v, radiale ; 

 c, ulnare ; /, pollex ; x, claw on pollex ; /', index metacarpal of carpo-metacarpus ; 

 i" , its first or proximal phalanx ; i"' , its distal phalanx ; m' , medius metacarpal of 

 carpo-metacarpus ; di" , its digit. 



aspect of the first digit of second metacarj^al. It is produced down- 

 wards as a flattened and peg-like process, not commonly seen. This 

 phalanx supports below one more long aijd slender joint. The smaller 

 digit of the third metacarpal has a shape not unlike a compressed 

 claw, as it hooks over the expanded portion of the finger at its side. 

 The Pelvic Limb. — After the i)rocess of maceration and drying, 



