MOLLUSCAN SHELLS. 287 



Surcula cingulifera, Lamarck. -S.E. Ceylon. 

 Suvcula javana, Linn. (= nodifera, Lamarck.). -Galle. 



Drillia crenularis, Lamarck. Pearl banks, Gulf of Manaar ; S. of Modragam. 

 Drillia spectrum. Reeve. Deep water oft' Galle. 

 Cythara hypercalles, Melvill. N. of Shoal Buoy. 



Family: CANCELLARIID.E. 

 Cancellaria (Trigonostoma) articularis, Sowerby. Jokkenpiddi Paar. 

 Cancellaria (Trigonostoma) crenifera, Sowerby. Pearl banks, Gulf of Manaar. 

 Cancellaria (Trigonostoma) hystrix, Reeve. S. of Adam's Bridge. 

 Cancellaria (Trigonostoma) lamellosa, Hinds. Pearl banks, Gulf of Manaar. 



Order : OPISTHOBRANCHIATA.* 



Family : ACTEONID.E. 

 Solidula affinis, A. Adams. Pearl bank, Aripu ; Trincomalee ; off Galle. 



Family : SOAPHANDR ID.E. 

 Atys naucum, Linn. Trincomalee. 



Family : BULUDM. 



Bulla ampulla, Linn. Pearl banks, Gulf of Manaar; Trincomalee; S. of Adam's 

 Bridge ; pearl banks off Aripu ; deep water off Galle ; Trincomalee ; S. of Modragam. 



Family : APLUSTRID^E. 

 Aplustrum thalassiarchi, Martyn. S. of Modragam Paar. 



Family: IMNGICULID.E. 

 Bingicula encarpoferens, Folin. Galle. 



Class: SCAPHOPODA. 



Family: DENTALIIIlE. 

 Dentalium attenuatum, Sowerby Off Galle. 



* See also Mr. Farran's Report, Part III., p. 329. K.l. 



