SHUFELDT : OSTEOLOGY OF THE STEGANOPODES 



181 



"The ilio-ischiatic foramen is subelliptioal and wide, the longitudinal diameter 

 being nearly twice the vertical, while in carbo this foramen is more pointed pos- 

 teriorly and narrower, the length being more than three times the height. 



" In consequence of the size of this foramen the distance from the dorsal edge of 

 the ilium to the ventral edge of the ischium is much greater than in carbo. 



"The bar of the ischium bounding the obturator space is sharp-edged, rugose, 

 and concave exteriorly on the posterior portion, while the corresponding portion of 

 the ischium in carbo is comparatively smooth and slightly convex posteriorly. 



Jiff. 30. 



fO:'^' 



Bones of Pallas' Cormorant. Natural size. After Lucas. Fig. 29. Left lateral aspect of pelvis. Fig. 30. Dorsal 

 aspect of pelvis. The long, svpeeping post-pubic bone vpas broken off and lost from this bone when it was discovered. 



