318 CLAUSILUD.E. 



long principal plait, conspicuous in the penultimate whorl above 

 the aperture. Besides, the number of palatal plaits is only three 

 against five of CI. insignis." (MdUendorff.) 



A doubtful species not seen by me. J udginf]; from the figure it 

 is more nearly related to C . gouldiana than to insignis. Specimens 

 of the former from Mergui, in the British Museum (Cuming col- 

 lection), resemble it, but they ai*e a trifle more veutricose and of a 

 pinkish colour ; they are composed of 10^ whorls and measure 

 23 mm. It should be borne in mind that C. gouldiana varies 

 considerably, and I strongly suspect that Mollendorff's species will 

 not stand the test of comparison of actual specimens. 



281. Clausilia gracilior, Hanley Sf Theobald. 



Clausilia insignis, vav (/racilior, Hanley & Theobald, Conch. Ind. 

 1870, p. 12, pi. 24, fig. 3. 



Shell subrimate, fusiform, turreted, rather solid, pale corneous, 

 finely and closely striated, the striae coarser and more distant 

 behind the aperture, some minute spirals on the later whorls. 

 Spire turreted, apex obtuse, suture impressed. Whorls 9, slightly 

 convex, increasing slowly, last whorl but little narrower than 

 penultimate, flattened near the suture, not compressed below the 

 upper palatal plica. Aperture slightly receding below, pear- 

 shaped ; parietal folds rather distant, the upper compressed, 

 elevated at first, becoming depressed after entering, and again 

 more elevated higher up, the lower very stout, obliquely entering. 



Fig. 1 10. — Clausilia gracilior. 



Palatal plicae 5, the upper long and parallel with the suture, the 

 second about one-third the length of the upper, parallel at first, 

 its anterior extremity deflexed, the third and fourth very short, 

 oblique, the fifth a little longer, curved, about parallel with the 

 lower suture; the fourth and fifth folds, as well as the sub- 

 columellar fold and the anterior part of the clausilium, are visible 

 from the aperture. Peristome thickened, expanded, and reflexed, 

 solute, the parietal margin with a slight sinus at the upper 

 parietal fold. 



Long. 26, diam. 5 mm. 



Hab. Burma: Moulmain. 



