Machiganga Indians of the San Miguel Valley 79 



^^'hile the majority of the males are mesaticephahc they are 

 close to brachycephaly and more than one-half of the females 

 are brachycephalic. 



All individuals of both sexes were hypsicephalic and more 

 markedly than the Quichua. 



The Alachiganga are microcephalic (1304 cc.S, 1192 cc?) 

 with a brain weight of 1091 grams for the male and 974.8 for 

 the female, and therefore distinctly smaller than in the Quichua. 



No other measurements of these Indians are known to the 

 writer. 



