U.S.N.M., no. 7673 S* Tientsin, China. A. de C. Sowerby. Length 
130 mm. 
U.S.N.M., no. 77008* Sungari River, at junction with the Amur. 
A. de C. Sowerby. Length 179 mm. 
U.S.N.M., 
Khanka Lake, Kamchatka. May 9> 1928. 
A. Taranetz. Length 82 mm. 
