Marsh Collection, Peabody Museum. 441 



that they are approximately correct. It will be seen from the 

 above table that the relative proportions of the hind-limb 

 bones and foot of Vulpavus place it much lower in the scale 

 than Cynodictis. In this respect it is indeed the most primi- 

 tive canine limb known. 



The first phalanges are relatively short, rather broad proxi- 

 mally and much curved ; this latter feature is as much or even 

 more marked than it is in the felines, which is somewhat sur- 

 prising. Were these bones found isolated, they would pass 

 very readily for those of a cat. The middle or second pha- 

 langes are of moderate length and distally unsymmetrical like 

 those of the cat, but not to such a marked n 



extent. This undoubtedly indicates a cer- 

 tain degree of retractility of the claws which fex 

 the animal in all probability possessed. <^^ 

 There is a single claw or ungual phalanx pre- 

 served in nearly perfect condition, figure 11, , I J [ < GURE } 1 u~E ngu f, 1 . 

 and the base of a second much damaged ; these ^ortman° naturaTsS! 

 show that they were compressed and pointed 

 and not flattened and fissured as in many contemporary Creodonts. 



I give the following principal measurements : 



mm. 



Length of superior dentition from anterior border of 



canine to posterior border of second molar _ 40* 



Length of first and second molars 8 # 5 



Antero-posterior diameter of first molar 5*5 



Antero-posterior diameter of second molar 3*0 



Length of superior sectorial, outside border 8 '5 



Length of premolar series including diastemata 17*5 



Transverse diameter of superior sectorial 6*5 



Transverse diameter of first molar 10* 



Transverse diameter of second molar 5*5 



Length of inferior dental series to anterior border of 



canine _ 45*00 



Length of jaw from anterior border of canine to condyle 74-5 



Length of inferior molars 15 -5 



Length of inferior premolars including diastemata 23*5 



Depth of jaw at posterior border of sectorial 11* 



Transverse diameter of distal end of humerus 23-5 



Length of ischium from posterior border of acetabulum.' 34* 



Length of femur __ 111" 



Length of tibia 107" 



Length of foot exclusive of ungual phalanx 106* 



Width of tarsus... ..-_ 20' 



Length of fourth metatarsal 40* 



Length of first phalanx of third digit 18* 



Length of second phalanx of third digit 12*5 



Length of calcaneum _ - 28'0 



Length of astragalus. 19" 



Width of astragalus -. — 12*5 



