1914-] H- B. Preston : MoUusca from the Chilka Lake. 299 



The t5'^pe specimen is in the British Museum. 



Specimens were also taken by Dr. Annandale at the following 

 localities : — Manikpatna in 4 feet of water ; channel between Sat- 

 para and Manikpatna ; Breakfast Isd., Ganjam District (young 

 and adult) ; Satpara, close in shore; between Barnakuda and Nal- 

 bano Isd., in ro feet; Barkul, among weeds at the edge of the 

 lake, 



Nassa orissaensis, sp. n. 

 (Figs. 10, 10a, p. 301). 



Shell fusiform, rather thin, pale brown, painted on the last 

 whorl with a rather broad, subperipheral chestnut band ; whorls 5, 

 shouldered above, the first very small, the second proportionately 

 large, the remainder regularly increasing, sculptured with coarse, 

 transverse costulae crossed by fine, spiral lirae, thus presenting a 

 somewhat cancellate appearance ; suture impressed ; columella 

 margin vertically descending, angled above and oblique at the 

 base, spreading above into a well defined, whitish, parietal callus 

 which reaches to the upper margin of the labrum ; labrum erect, 

 varicosely thickened behind, crenellated, especially above, by the 

 terminations of the spiral lirae ; aperture oval ; canal very broad, 

 short. 



Alt. 6'25, diam. maj. 3*25, diam. min. 3 mm. 



Aperture : alt. 275, diam. i mm. 



Hab. — lyake Chilka, Orissa, on a muddy bottom at a depth of 

 from 6 to 8 feet, about three miles off Balugaon (Type) ; about 

 two miles oft" Balugaon, on a muddy bottom at between 6 to 8 

 feet; Manikpatna, in 4 feet; Rambha Bay, south end of I^ake 

 Chilka, in the Ganjam District; Satpara, close in shore; between 

 Barnakuda and Nalbano Isd., in 10 feet ; ofif east end of Nalbano 

 Isd., in from 4 to 6 feet. 



Family MURICIDAE. 



Thais carinifera, Lam. 



Lamarck, Animaux sans Vertebres, vol. vii, 1822, p. 241. 

 Breakfast Isd., "inhabited by a hermit crab {Clibanarius 

 padavensis, de Man.) ; off Samal Isd., Ganjam District, Madras. 



Family CERITHIIDAE. 

 Potamides (Tympanotonos) fluviatilis, Pot. and Mich. 



Cat. Moll, de Douai, p. 363, pi. xxxi, figs. 19-20. 



Oft" eastern end of Nalbano Isd., Orissa, in 4-6 feet; Manik- 

 patna, in 4 feet; channel between Satpara and Manikpatna; off 

 Satpara. 



