1895.] MOLLUSC A or the AITDAMAIf A^D IflCOBAE ISLANDS. 453 



The type is in the Indian Museum, Calcutta, so I have not seen 

 it, NevUl gives polynema, Miirch, from Teressa, collected by 

 de EoepstorfF, which is no. 10 of the ' Hand-list,' and no. 13 

 from Batte Malve, collected by Stohczka, as a variety oi polynema. 



Genus Lagocheilus. 



8. LagocheilijS TiGNARiTJS, Bs. ((7;/«<Aopo?)!« ?, Benson) (p. 444). 



The operculum in this species is shghtly concave in front, multi- 

 spiral ; the spiral defined by a narrow rib in relief. The oper- 

 culum of L. tomotrenia, of the Khasi Hill ranges, is horny, quite 

 smooth in front, the spiral formation being but scarcely apparent. 



ACMELLA. 



Under this genus Ne-vill records A. andamanica as being in the 

 Calcutta Museum, and says : " compared with A. h/alina (Theob. 

 and StoUcz. from Moulmein), of which it is probably a large 

 variety." 



1. ACMELLA MELLILLA (p. 444). 



Locality. South Andaman (de Roepstorff). 



Shell dextral, ovately turreted; sculpture obHque, fine, close 

 costulation ; colour pale umber ; spire depressedly conic ; apex 

 very blunt, suture impressed ; whorls 5, sides flat ; aperture oval, 

 suboblique ; peristome double, with a strong callus on the body- 

 whorl. 



Fig. C. 



Acmella Tnellilla. 



Size: maj. diam. 1-25 ; alt, axis 1*75 mm. 

 Only one specimen in the collection. 



5. Acmella glbbolde.!, Nevill MS. (p. 444). 



The two typical examples of this species are in the Indian 

 Museum, collected by de Eoepstorff in the Andamans. 



Genus Ctathopoma. 



1. Ctathopoma natalicitjm, n. sp. (p. 444). 



Locality. Camorta. 



This is no. 50 of Nevill's ' Hand-list,' which is not named. There 

 are four specimens in the Indian Museum, 



