SHUFELDT : OSTEOLOGY OF THE STEGANOPODES 



181 



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

 being nearly twice the vertical, while in carlo 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 carlo. 



"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 carlo is comparatively smooth and slightly convex posteriorly. 



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

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



