296 Records of the Indian Museum. [Vor. XI, 
lenous, slightly reflexed, extending above into a thin, well defined, 
restricted, parietal callus which reaches to the upper margin of 
the labrum; labrum acute, a little dilated at the base; aperture: 
ovate, very slightly oblique. 
Alt. 8°75, diam. maj. 2°75, diam. min. 2°25 mm. 
Aperture: alt. 2, diam. I mm. 
Hab.—Breakfast Id., midway between Ganta Sila and Chi: 
riya Id S. Point, 5-6 ft. 
Chrysallida (Mormula) nadiensis, sp. n. 
(Figs. 8, 8a, p. 295.) 
Shell fusiform, white; whorls 6, regularly but rather rapidly 
increasing, shouldered above and below, transversely costulate 
and finely spirally striate, the costulae becoming obsolete and 
the striae coarser on the base of the shell; suture well impressed ; 
columellar margin somewhat obliquely descending and a little 
inwardly bulging above, curved below, extending above into a 
thickish, well-defined, parietal callus which unites it with the 
upper margin of the labrum; labrum acute, rather dilated at the 
base; aperture slightly oblique, ovate. 
Alt. 3°25, diam. maj. 1°25 mm. 
Hab.—Serua Nadi, 5-9 ft. (Type); Mahosa, southwards 
towards sandhills, 4-8 ft.; Nalbano and channel S.E. of Nalbano, 
4-8 ft.; 1 mile S. of Kalidai, 4-8 ft. 
Odostomia chilkaénsis, Preston. 
Rec. Ind. Mus., X, pp. 301-302. 
Mahosa, southwards towards sandhills, 4-8 ‘ft. 
Family NERITIDAE. 
Neritiua souverbiana, Montrouzier. 
J. Conchyliol., Paris, XI, 1863, pp. 75, 175, pl. v, fig. 5. 
Mahosa, Barhampur Id.; Serua Nadi, 5-9 ft.; 1 mile E. 
by N. of Patsahanipur, 44 ft. (dead shells only). 
Family CYCLOSTREMATIDAE 
Cyclostrema (Tubiola) innocens, sp. n. 
(Figs. 9, ga-b, p. 299.) 
Shell small, discoidal, almost planulate, milk white, smooth 
throughout; whorls 3, rather rapidly increasing, the last convex, 
marked only with growth striae; suture well impressed; umbili- 
cus moderately wide; labrum continuous, simple; aperture rather 
large for the size of the shell, subcircular. 
Alt. °5, diam. maj. 2, diam. min. 1°75 mm. 
Hab.—Serua Nadi, 5-9 ft. 
