hrdliCka] skeletal REMAINS OF EARLY MAN 377 



The substance of the results of the comparison can be stated in a 

 few words : There follows in general a strengthening of the deductions 

 resulting frona the comparison of the TefraprotJiomo specimen with 

 recent forms. The Monte Hermoso femur is that of a carnivore. 

 As might be expected, it presents complete identity with none of the 

 fossil forms examined, but it possesses strong group relations with v' 

 them all. As to family, it affiliates most closely with the Felidae. 



Entering more fully into detail, the comparisons showed that 

 as to shape the shaft in all the fossil Felidae that were examined 

 and also in the Phlaocyon resembles veiy closely that of the Tetrapro- 

 thomo femur, while in the Canidse it presents perceptible differences. 



The backward bend of the shaft, in general slight and diffuse, is 

 quite marked in the Pogonodon, where it extends from the lower 

 two-thirds of the shaft. 



The outward curvature of the shaft is practically absent from the 

 dogs, is present to a slight degree in the Phlaocyon, and is general in 

 the cats; in the Pogonodon it is of very much the same grade as in 

 the femur from Monte Hermoso. 



Torsion of the shaft was found to be much like that in the Tetra- 

 prothomo femur or only slightly less in all the Felidge, but it was 

 decidedly less in the Canidse and also in the Procyonidae. 



The linea aspera is of the same or closely related type as that in 

 the Tetraprothomo, in the cats, and also in the DapTixnus, while in the 

 rest of the dogs and in the Phlaocyon it is distinct, running more 

 mediad and being in general nearer the type shown by the Primates. 



The gluteal ridge forms in all cases, as in the Tetraprothomo, a con- 

 stituent and indistinguishable part of the linea aspera. 



The third trochanter is present in all the fossil cats. It is usually 

 an oblong and well-marked tuberosity forming a constituent part of 

 the lateral ridge which, lower down, becomes the linea aspera, very 

 much as in the Tetraprothomo. In the dogs, except the Daphxnus, 

 in which these features are much as in the cats, the third trochanter 

 approximates more a distinct tuberosity, tending toward isolation 

 from below. In the Phlaocyon the features are again much as in the 

 Monte Hermoso femur. In nearly all these bones the superior part 

 of the anterior border of the third trochanter is somewhat overhanerinor. 

 as in the Tetraprothomo specimen. 



As to height, the minor trochanter is situated in all the fossil 

 Carnivora except the Phlaocyon (in which it is somewhat lower) 

 much as in the Monte Hermoso femur, and most of the specimens 

 bear also a similarity to the Tetraprothomo bone in the very median 

 situation of the tuberosity, the only exceptions being the Nimraous 

 and JElurodon, in both of which the trochanter is somewhat less 

 nearly medial, and the Hoplophoneus, in which it is even more 

 nearly medial than in the Tetraprothomo. As to the form of the 

 minor trochanter, in none of the specimens compared is this quite 



