1914-] H. B. Preston : Mollusca from the Chilka Lake. 301 



growth markings, the last convex and rapidly descending in front ; 

 labrum continuous, slightly erect; aperture strangulate, oblique, 



oval. 



Alt. 2-25, diam. maj., I'S mm. 



Hab.— Off Satpara, Lake Chilka, Orissa, at a depth of from 

 4 to 6 feet, close in shore (Type) ; dead specimens were also taken 

 at Manikpatna at a depth of 4 feet. 



Fig. 7. Tornafina estriaia. FiG. 9' Nassa denegabilis. 



g sovor. M lo- Nassa orissaensis. 



Fig. II. Solariella satparaensis. 



Family PYRAMIDELLIDAE. 



Odostomia chilkaensis, sp. n. 



(Fig. 4, P- 298). 



Shell elongately ovate, opaque, in somewhat eroded condition 

 white, without trace of sculpture; whorls 6, shouldered above, 

 the first three small, regularly increasing, the last three propor- 



