hrdliCka] skeletal REMAINS OF EARLY MAN 359 



is decided to be a representative of the third genus of the family 

 of the HominidseJ' Nevertheless, "the distance between Tetra- 

 prothomo and Homo is from the morphologic and evolutionary point 

 of view so considerable that it causes the presupposition of the 

 possible existence of the three intermediary genera: Prothomo, 

 Diprotliomo, and Triprotlwmo, whose characteristics I determined 

 many years ago theoretically" (p. 210). 



In the last pages of Doctor Ameghino's memoir the preceding con- 

 siderations form the basis of a new, complex, zoo-anthropologic 

 classification, and also of a far-reaching theory of the evolution of 

 mankind in and its spread from South America. 



ADDITIONAL LITERATURE 



Additional literature on the Monte Hermoso atlas and femur is as yet 

 scarce. In 1909 Lehmann-Nitsche published a brief communication 

 on Homo sapiens and Homo neogseus,^ in which he repeats some of the 

 principal characteristics of the Monte Hermoso atlas as found by his 

 examination. Those features of the bone which in his earlier 

 report on the specimen (Nouvelles recherches, etc., 1907) were speci- 

 fied as not having occurred in any of the other sixteen Indian atlases 

 used for comparison, are now stated unqualifiedly as never occurring 

 in any recent atlases, and some of these features are again said to bear 

 relation to small brain development in the species. However, the 

 atlas is "humanoid" and not "anthropoid." 



In the same year the TetraprotJwmo femur and atlas are dealt with 

 at some length by Giuffrida-Ruggeri,^ but the author restricts himself 

 to a report of the cases and some secondary considerations, mthout 

 giving any independent critical opinion. 



The same year the two finds, with others of Ameghino, are already 

 unreservedly utilized by Sergi^ in support of his theory of polyg- 

 enism and serve as a base of a new classification of mankind. 



In 1910 Sergi reports* again on the latest finds relating to ancient 

 man and his precursors in Argentina, accepts them apparently with- 

 out any serious doubt, and advances again on their basis his new 

 classification of the human family. The being or beings represented 

 by the Tetraprothomo atlas and femur are placed among the Pro- 

 anthropidx. Lehmann-Nitsche 's classification of the atlas as belong- 

 ing to Homo neogseus is declared inadmissible, ''because the atlas does 

 not belong to man." 



> Homo sapiens und Homo neogseus aus der argent in ischen Panipasformation;in Verhandlungen xvi, 

 Intcrnationalen Amcrikanistcn-Kovgresscs, Wien, 1909, pp. 93-98; also in Naturu-issenschaftUche Wochen- 

 schrift, N. F., Band vni, Jena, 1909. 



2 Giuflrida-Ruggeri, V., Un nuovo precursore dell' uomo. II " Tetraprothomo argcntinus"; in Rivista 

 d' Italia, fasckolo di gennain, Roma. 1909, pp. 137-147. 



3 Sergi, G., L'apologia del mlo poligenismo; in Attt Soc. romana di antr., xv, fasc. 2, Roma, 1909, pp. 

 187-195. 



< Sergi, G., Paleontologie sud-Am6ricaine; in Scicntia, vin, Bologna, 1910, pp. x\i-4. 



