HRDLiL'KA] SKELETAL. REMAINS OF EARLY MAN" 383 



Comparison of the principal indices of the Tetraprothomo specimen and other femora 



Man 



Anthropoid apes 



Monkeys 



Tetraprothomo 



Ancient North American Fehdse . 

 Modem South American Felidse . 

 Ancient North American Canidse 

 Modem North American Canidse 



Ursus Americanus 



Hyena striata 



Platy- 

 meric 

 index i 



79.3 

 73. S 

 65.6 

 73.6 

 70.5 

 83.8 

 60.5 

 7S.7 



Breadth- 

 thickness 

 index of 

 lower 

 end of 

 diaphysis 2 



6S.9 



47. 3 

 50.7 

 72. 6 

 72.4 

 75.3 

 70.2 

 79.4 

 60.3 



Length- 

 breadtli 

 index of 

 lower ex- 

 tremity 3 



75.6 

 74.1 

 77.8 



100.0 

 92.6 

 97.9 

 93.3 



114.2 

 97.3 



101.2 



Relation in 

 length of 

 medial to 

 lateral con- 

 dyle (lat- 

 eral con- 

 dyle=100) 



104.2 

 116.8 

 108.2 

 111.8 

 100.0 

 100.7 

 104.9 

 104.9 

 125.7 

 106.2 



1 Diameter antero-posterior minimum of subtrochanteric flattening x 100 and -i- by the diameter lateral 

 maxinmm taken at the same height. 



2 Diameter antero-posterior of lower end of the diaphysis, just above the gastrocnemices insertions 

 X 100 and -J- by the diameter lateral taken at the same level. 



3 Diameter antero-posterior maximum of the condyles x 100 and ■¥■ by the diameter lateral maximum; 

 measurements taken as indicated in footnote of table on p. 381. 



* Average of 25 femora of whites, of both sexes. 



Notes on identification oj Monte Hermoso femur, hij J. W. Gidley. — 

 The cast of the TetraprotTiomo femur was also submitted for compari- 

 son to Mr. J. W. Gidley, custodian of fossil mammals, U. S. National 

 Museum, who kindly furnished the following report: "A careful com- 

 parison of the cast with numerous examples of both living and fossil 

 mammals seems to show no characters in common with any of the 

 Primates that are not also common to some or all of the carnivores. 

 The proximal end, although broken, shows some especially charac- 

 teristic features unlike those of any Primates. The trochanteric 

 fossa is depressed to near the level of the lesser trochanter, the lesser 

 trochanter is shifted to the extreme inner border of the posterior face, 

 and the posterior area in this region is broadened and flattened. 

 These features suggest a decided resemblance to many of the dogs, 

 especially Zhocyon and Vulpes. The distal end, however, in its more 

 broadened patellar groove and general aspect is more cat-like in 

 character, suggesting Felis onca, although the inner condyle is rela- 

 tively longer [antero-posteriorly] than in any of the living species. 

 In this respect the South American femur more nearly resembles 

 the more primitive cats of the HoplopJioneus type. Thus, while it 

 does not seem possible with the material at hand to determine defi- 

 nitely the particular group to which it may belong, the characters 

 presented in this femur point undoubtedly to a carnivore rather than 

 to a primate relationship." 



