1900.} SHUFELDT—OSTEOLOGY OF THE WOODPECKERS. 611 
the postpubic bone is long and slender, being produced well be- 
yond the ilia on either side behind. Sometimes it fuses with the 
foot-like process sent down by the ischium. Superiorly the hinder 
margin of the ischium is roundly concaved, the lower part being 
convexed outward. Upon the aspect now under consideration we 
see that the pelvis is rather deep. ‘This feature is very character- 
istic of such a form as the Ivory-billed Woodpecker (see Fig. 8). 
SSS 
SS 
<< 
STERNUM AND PELvIs OF IVORY-BILLED WOODPECKER, 
(Campephilus principalis. ) 
Fic. 8. (Upper one.) Left lateral view of the pelvis. 
Fic. g. (Left-hand one.) Superior view of the same bone. 
Fic. 10. (Right-hand one). Anterior aspect of sternum, 
All figures life size from nature by the author from specimen No. 18578 of 
the collections in the United States National Museum. 
