132 G. R. Wieland — Upper Cretaceous Turtles. 



Length over curvature measured along posterior 

 sutural borders. 



IstPleural 21-0 c 



(2d " ) _ 23-0 



3d " _ 25-0 



4th " 24-0 



5th « _._ 21-0 



Width of Nuchal measured along anterior border 14*0 



Greatest width of Nuchal.- ■_•_ 18'5 



Anterior posterior length of Nuchal 9*0 



Anterior-posterior length of first Neural 10*2 



Greatest width 1st Neural., ._ _ 5*5 



Greatest width 2d Neural .__' 5*7 



The Plastron. 



Greatest lateral width of the hyoplastron __ 25"0 



" " " hypoplastron _ 17*0 



Length along median line of interdigition of. 



Xiphiplastra _ ,_ 11-0 



The Pelvis. 



Distance from lower outer border of acetabular 

 surface to base of the ento-ectopubic notch 

 (or curve) 6 '2 



Distance from acetabulum to base of inner post 



ischial curve _ 5*5 



Least distance from center of acetabulum to ex- 

 tremity of ilium (or surface of iliac support 

 on carapace) __ 8*0 



The Humerus. 

 (Normal in every respect.) 



Extreme length - 17 '0 



Distance from outer border of radial to end of 



ulnar crest ._ 7*8 



Diameter of head (dorso-ventral) 3 -25 



Dorso-ventral thickness of shaft 1*7 



Greatest distal width 5 '4 



Distance of entepicondylar foramen from anterior 



border 1*1 



Paleontological Laboratory, 



Yale University Museum, 



New Haven, Conn. 



