476 Bulletin American Aliiseicm of Natural Histoi'y. [Vol, XIX. 



COMPARATIVE SKELETAL MEASUREMENTS. 



Skeleton; Total length, premaxillaries to ischia 



" height, spine of 3d dorsal 



breadth across ilia 



Axial Skeleton: Skull, incisors to occipital condyles 



transverse, zygotnatic arches 



Vertebral column, zo presacral vertebrffi. ... 



7 cervicals, total 



midcervical centrum 



18 dorsals, total 



4th dorsal, centrum 



" " height of spine. . 



7 lumbars, total 



2d lumbar centrum 



6 sacrals, total 



caudals, total 



Ribs, sth, length, outer measurement 



Sth, " " " 



" 13th " " " 



17th " " " 



Appendicular Skeleton: Hind limb, total length 



Femur, total length 



circumference of shaft 



Tibia, total length 



" circumference of shaft 



Pes, OS calcis to Dig. Ill, Ph. 3 



transverse, tarsals 



anteroposterior, tarsals 



Metatarsal III, total length 



" " circumference of shaft . 



Fore limb, total length 



Scapula, length 



" greatest width 



Humerus, total length 



" circumference of shaft 



Radius, total length 



" circumference of shaft 



Ulna, total length 



Manus, lunar to Dig. Ill, Ph. 3 



transverse, carpals 



anteroposterior, carpals 



Metacarpal III, total length 



mm. 



460 

 135 



175 



So 



'145 



1 OS 

 7,0 



2 So 



53 



170 



175 

 190 

 135 



506 



170 

 55 



170 

 50 



190 

 20 

 22 

 98 

 32 



49S 



130 

 So 



115 

 47 



122 

 38 



157 



130 

 19 

 IS 

 80 



< s 



290 



378 



130 



1280' 



446 



80 



605= 



32 

 135 



240^ 



40 



170 



325 



28s 



365* 



350 



252 



950 



255 



100 



290 



90 

 460 



30 



34 

 2S5 



70 



lOIO 



250 

 128 

 100 



SS 

 245 



80 

 300 

 3SS 



40 



30 



215 



«1 



mm. 



1600 

 620 

 638 

 20s 



1961 

 686 

 13S 

 911 

 SO 

 250 

 364 

 S8 

 230*^ 

 650 

 400 

 63 S 

 6SS 

 490 



1416 

 43S 

 21S 

 400 

 180 

 660 

 82 

 70 

 300 

 132 



1660 

 4SO 

 250 

 3SO 

 190 

 37 5 

 165 

 490 

 SI 3 

 88 

 5 5 

 263 



' Thirty-one presacral vertebra. 

 * Seventh rib. 



^ Eighteen dorsals. 



•* Five sacrals. 



^ Six lumbars. 



