HEEPETOLOGY OF JAPAN. 



527 



Reference has already been made to the specimen from northern 

 Cliina, to which I apply the above name more because the locality is 

 the same as that of the t}^e than because the description applies 

 better to it than any of the others. It is quite likely that eventually 

 A. maackii may turn out to be the same thing as the Peking form, in 

 which case that name will take precedence. At present, however, I 

 deem it the wisest course to enumerate them separately. 



If Ford's elegant figures of the half-grown specimen in British 

 Museum, from "China,"'* are as accurate as they are artistic, they 



Fig. 407.— Amyda schlegelii. i X nat. size. View from above. No. 29700, U.S.N.M. 



probably represent an individual of the present species. The dorsal 

 keel, the tubercular ridges, and the coloration agree completely with 

 our north China specimen, and especially the great depth of the body 

 as shown in the upper figure. Expressed in per cent of the total 

 length of the carapace, the depth is nearly 36, or in excess of the cor- 

 responding percentage in our male specimen of ^4. schlegelii (see 

 table p. 516). 



Description. — Male, third year; U.S.N.M. No. 29700; north Cliina, 

 between Tientsin and Peking; 1901; M. L. Eobb, collector (figs. 



a Cat. Shield Rept. Brit. Mus., 1855, pi. xxxi. 

 in this work, fig. 406, on p. 522. 



Oatline of upper figure reproduced 



