418 Journal of the Asiatic Society of Bengal. [N.S., XTX, 
Mr. Srinivasa Rao has extracted the radula and jaw from 
the type-specimen from Sanda. The latter forms a sector of a 

i 
4 
Fig. 2. Radulae of Limnaea yunnanensis. 
(a) From type-specimen of the species. i 
(6) From a typical shell of the form distensa. { 

markedly asymetrical bilobed cusp All the laterals are 
tricuspid, with the entocene well developed. The first lateral 
on either side is relatively short and broad. The cusps of the 
marginals are horizontal and subequal. The most characteris- 
tic feature is the shortness of the first lateral, in which this 
species differ from both L. acuminata and L. shanensis. 
Type-specimen. M #452, Z8T. (Ind. Mus). 

