No. 2391. DESCRIPTIONS OF PLEISTOCENE VERTEBRATA— HAY. 633 



Measurements of radii of wolves. 



c. 



nubilusl 



C. 



nubilus. 



Total length , 202 204 



Greatest widt h of head | 2 1 23 



Width at middle of length I 15.5 16 



Thickness at middle of length i 10 11.0 



Thickness 30 mm. above lower end 10.5 13. 5 



Greatest diameter at lower end 28. 6 I 30. 



The thickening of the bone in the distal half is especially noticeable. 

 The humerus of the wolf No. 1308 is 205 mm. long. The length of 

 the fossil can not be determined. It is assumed to have been closely 



the same. 



Measurements of humeri of wolves. 



Total length 



Fore-and-aft diameter 102 mm. above lower end 

 Side-to-side diameter 102 mm. above lower end. 



Width of lower articular surface 



Width across condyles at lower end 



The best preserved ramus of the lower jaw, in comparison w T ith 

 that of C. nubilus, is lower and thinner. The teeth differ apparently 

 only in being thinner. The canine, as shown by a part of the socket 

 present, was slender. 



Another fragment of a left ramus is similarly low, but is thicker. 

 The fourth premolar is as thick as in C. nubilus. A third left ramus 

 had early lost the carnassial tooth by disease. The socket is filled 

 with bone and the jaw is swollen in that region. The fourth molar is 

 longer and thicker than in C. nubilus. A complete axis is of a size 

 corresponding to the other bones. It appears probable that all of 

 these parts belong to C. nubilus or to a species very close to it. 



In the American Museum of Natural History there is a fragment 

 of a left ramus of a lower jaw (Cat. No. 14360) which contains the 

 last two molars. It probably belongs to the same species as the 

 others. An atlas in the same collection is to be similarly referred. 



In addition to these bones there are some of a smaller individual, 

 a cervical vertebra, apparently the seventh, and a dorsal vertebra, 

 about the fifth (Cat. No. 10220); the distal ends of two tibiae and 

 the corresponding astragali (Cat. Nos. 10218, 10219). 



CANIS LATRANS Say. 



Canis latrans, or a species close to it, is represented by a part of a 

 right tibia (Cat. No. 10221) and an upper left canine (Cat. No. 10222). 

 The fragment of tibia is 113 mm. long, and lacks a little of the upper 



