Merriam.1 



New Irh tli yosct 11 ri<i . 



263 



Measurements. 



Femur 



Length 32.5 mm. 



Width of proximal end 16 



Width of distal end 24 



Thickness at twist, parallel with plane of distal end H 



Thickness of proximal end 11 



Tibia 



Length 15 



Width, proximal 13 



" notch to notch 8 



distal 12 



Fibula 



Greatest length 18 



Width, median 9.5 



" distal 12 



Film la re 



Length : 8 



Width 7.5 



1 (istal tarsal one 



Length 6 



Width 7 



Anterior limbs (PI. 24, fig. 2). — The anterior limb has unfor- 

 tunately been weathered on one side so that the proximal and 

 posterior portions of the humerus and the part of the manus 

 behind the second digit are gone. So much of the limb as is pres- 

 ent resembles considerably the type of anterior extremity found 

 in Leptocheirus . The width of the radius appears to be slightly 

 greater, its anterior notch deeper, and the notching of the meta- 

 podal and phalangeal bones seems to be carried farther than in 

 Leptocheirus zitteli. In digit one the metacarpal and all of the 

 phalanges are notched on both anterior and posterior sides. In 

 digit two phalanx one has a deep posterior notch, while two and 

 three are notched on both sides. 



Measurements. 



Radius 



Greatest length 15 mm. 



Width, proximal and distal 12 



" between notches 9 



Radiale 



Length 8 



Width, proximal 8.5 



" at notch 6.5 



" distal 7.5 



