SMITHSONIAN MISCELLANEOUS COLLECTIONS 



VOL. 81. NO. 1, PL. 18 



FIG. 1.— CERATOTHERIUM SIMUM SIMUM ; FEMALE, AGED 



FIG. 2— CERATOTHERIUM SIMUM COTTON I ; MALE, IMMATURE 



FIG. 3.— CERATOTHERIUM SIMUM COTTONI ; FEMALE, ADULT 



