520 



BULLETIN 58, UNITED STATES NATIONAL MUSEUM. 



Description (%s. 402-405). — Male, 4 years old; U.S.N.M. No. 

 21179; Japan; Imperial Government collection. Head moderate 

 pointed, the proboscis as long as width of interorbital space and one- 

 half the upper eyelid ; nostrils separated by a narrow septum, on each 



Figs. 402-403.— Amyda japonica. 5 x nat. size. -102. side view; 403. view from above. No. 



21177, U.S.N.M. 



side of which a papilla is visible near the opening; interorbital space 

 equals one-half the horizontal diameter of orbit; carapace oval; the 

 anterior margin of the revolute nuchal border somewhat rugose with 

 two small tubercles on the median line; along the median line of the 



