PROC. US. NAT. MUS. VOL. 110 



HERSHKOVITZ, PLATE 10 



Lateral aspect (X2) of same skulls shown in plates 8, 9: a, Oryzumys bicolor; b, 0. concolor; 

 c, 0. suhflavus; d, 0. xantheolus; e, 0. laticeps. 



