342 



NOTES ON THE CANTD.E OF THE WHITE RIVER OLJGOCEXE. 



which are very much like the corresponding caudals of the long-tailed cats, but are 

 decidedly longer and more slender proportionately. Near the tip of the tail the vertebras 

 become very small. 



The ribs are represented only by fragments, which, so far as they are preserved, do 

 not differ materially from those of the modern Canidce. From the character of the pos- 

 terior thoracic vertebra?, it may be inferred that the eleventh, twelfth and thirteenth pairs 

 of ribs did not possess tubercles. 



Of the sternum very little is preserved. One segment of the mesosternum is asso- 

 ciated with the type specimen of D. felinus ; it has much the same shape as in modern 

 dogs, but is somewhat thicker transversely and shallower vertically, in proportion to its 

 length. Another segment accompanies a specimen of D. vetus (No. 11424) and is much 

 wider and more depressed than in any of the existing fissipedes^ except certain hyrenas. 

 As the association of this weathered fragment with the skeleton of Dap/uenus may be 

 accidental, no great stress can be laid upon it. 



Mriisiirciitviih. 



Atlas, length 



Axis, length (excl. of odontoid) 



" " of odontoid process 



" width anterior face 



Third cervical vertebra, length 



" width of anterior face. . 



Fourth " *' length 



Fifth " " " 



Sixth " " " 



width of anterior face . 



Seventh " " length , 



First thoracic vertebra, length 



Thirteenth thoracic vertebra, length 



" width anterior face 



First lumbar vertebra, length 



" width anterior face 



Sixth " " length 



'' width anterior face 



Last luruhar, length 



" width anterior face 



Sacrum, length 



' ' width across pleurapoph y ses 



First caudal vertebra, length 



" width across transverse processes-. 

 Median caudal, length 



No. 11421. 



.024 

 .012 

 .022 

 Hi? 

 .021 

 .017 



No. 11423. 



0.031 



.013 

 .028 

 .030 

 .014 

 .030 

 .030 

 .028 

 .014 

 .024 

 .020 

 .024 

 .021 

 .028 

 .020 

 .037 

 .021 

 .030 

 .022 

 .058 

 .051 

 .020 

 .060 

 .040 



.041 

 .014 

 .031 

 .031 

 .016 

 .030 



.031 

 .016 

 .026 

 .021 

 .024 

 .021 

 .028 

 .020 

 .037 

 .021 

 .028 

 .025 



.051 



