ON A SPECIES OF ACETES FROM JAPAN. 



167 



off Nagasu in Buzen, off Mokpho in Korea. Caught in summer and 

 autumn with fyke-nets and dip-nets. The species seems to be annual. 



So far as I am aware, there have been only two known species in 

 the genus Acctcs, viz., A. indiens and A. amcricanus. 



The former* bears three or four teeth on the rostrum, while the latter 

 only one, and both of them differ in that respect from the Japanese and 

 Korean species, which has two teeth on the same. Hence I propose to 

 distinguish our species under the name of A. japoniens. 



* Milne-Edwards. — Histoire naturelle des Crustacés. 1837. p. 430. 



