380 



NOTES ON THE CANI1XE OF THE WHITE RIVER OLIGOCENE. 



civets. The manubrium is long, more so than in Canis, as well as narrower and more 

 compressed. The first pair of ribs is attached to a pair of wing-like processes, which 

 are unusually far from the second pair. In front of these processes the bone is com- 

 pressed and very narrow. For much of its length the manubrium possesses a ventral 

 keel. The segments of the mesosteruum, so far as they are preserved in the various 

 specimens, are more elongate, more slender and dejjressed and more contracted in the 

 middle than in the recent Can/idee. 



Measurements. 



No. 10493. 



Atlas, length 0.016 



" breadth 034 



Axis, length (excl. of odontoid) .019 



" " of odontoid process -005 



" breadth of anterior face -013 



Third cervical, length 011 



Fourth " " 



Fifth " " 



Sixth " " 



Seventh " " 



Anterior thoracic, length 



Last thoracic, lenglh -012 



First lumbar, " 



Second - ; " 



Fifth " " 



" " width post, face 



Sixth " length 



Seventh " " 



Sacrum, length 



First sacral, width across pleurap 



Third " " " trausv. pr 



First caudal, length 



" " width across transv. pr 



Median caudal, length 



" " width ant. face 



No. 11012. No. 11381 



.013 



008 

 .012 



.01G 

 .010 

 .015 



.024 



.024 

 .021 

 .1X17 

 .021 



.005 



.020 



.0135 

 .012 



.013 

 .011 

 .009 

 .013 

 .015 

 .017 

 .018 

 .011 

 .017 

 .013 

 .026 

 .024 



.00-3 

 .026 



No. 11382. 



No. 11432. 



.013 



.014 

 .013 

 .012 

 .010 

 .0085 



.013 



.0145 



.016 



.009 



.014 



.013 



V.010 



.012 



V. The Fore Limb. 



The scapula i> quite remarkable ami is in character rather viverrine or raccoon-like 

 than canine. The shoulder blade is rather low and broad and is divided by the spine 

 into pre- and postscapular fossae of nearly equal breadth, while in the modern dogs the 

 scapula is high, narrow and of subquadrate shape, and has the spine so placed as to 

 make the postscapular fossa much the larger of the two. The glenoid cavity is moder- 

 ately concave, and is elongate antero-posteriorly, but narrow transversely. The coracoid 



