SMITHSONIAN MISCELLANEOUS COLLECTIONS 



VOL. 81, NO. 1, PL. 26 



MALE FEMALE 



FIGS. 1, 2 & 7.— CERATOTHERIUM SIMUM SIMUM 



FIGS. 3-6 & 8-12— CERATOTHERIUM SIMUM COTTONI 



ARRANGED ACCORDING TO AGE, THE OLDEST AT THE TOP 



