CANID^. 911 



Meas%irement8 of vertebrcc. 



M. 



i longitudinal 017 

 . 5 vertical (at middle) .009 



i< ( ve 



i anterior < 

 ^ < tri 



Diameters second lumbar 



an 



Diameters tiftb lumbar < 



transverse OUT 



longitudinal 0J3 



terior ^ ^^^ical (at middle) 0115 



( transverse OU' 



longitudinal 020 



, anterior < ^"t'^*^' (at middle) 012 



^ (transverse 018 



The greater tuberosity of the humerus is of the usual straight form. 

 As compared with both the wolf and coyote, both tuberosities are more 

 produced, and the interaal terminates in an acute edge not found in the two 

 species named. The crest of the external tuberosity is continued farther 

 posteriorly than in the coyote or wolf, surrounding the teres insertion space, 

 and continuing below it on the shaft. The lesser tuberosity on the other 

 hand graduates into the head, without the shoulder seen in C. latrans and 

 C. lupus. The condyles have a smaller diameter and much greater trans- 

 verse extent than in either of the species of Canis cited, or in the Vulpes 

 cinereoargentatus, thus resembling the corresponding part in the Eocene 

 Oxi/cenidce. This resemblance is heightened by the considerable prominence 

 of the internal epicondyle, which exceeds that seen in the recent Canidse 



mentioned. 



Measurements of humerus. 



M. 



Anteroposterior diameter of head and greater tuberosity 035 



Anteroposterior diameter of head aloue 025 



Anteroposterior diameter to bicipital groove 021 



Transverse diameter to bicipital groove 019 



transverse 021 



( tra 



s< 

 i an1 



Diameters of condyles.; . C external OU 



' anteroposterior < 



i internal .. .016 



Width of posterior face of condyle 014 



The cuboid is a very little longer than wide. The peroneus longus 

 groove is profound and enters at the middle of the external border. 



Measurements of cuboid. 



M. 

 Length 012 



Proximal diameter^ ^'^t^^P"^*"-'"^ 0'^' 



( transverse OU 



A third cranium is accompanied by some bones, among which is a cal- 

 caneum (see Plate LXXI«, fig. 7). The characters of this bone distin- 

 guish it widely from that of the Canes lupus, latrans, and cancrivorus, and the 



