SESARA. 247 



that the spire is lower and the apex slightly acuminate, the base 

 flatter and the periphery of the basal whorl keeled. 



Major diam. lOj, min. 10, axis 6| mm. 



Hob. Akoutoung, south of Prorne, Pegu(TF. T. I?.), and Arakan 

 Hills (Kurz). 



The animal has a small mucous pore and small projecting lobe 

 above it. 



375. Sesara basseinensis, W. T. Blanford (Nanina), J. A. S. 3. 1865, 



p. 70 ; Pfr. Mon. Hel. v, 1868, p! 89 ; H. 8f T. C. 1. 1876, pi. 30, 

 % 7. 



Similar to S. helicifera, but perforate, with a less excavated 

 umbilical region and without any spiral fold on the columellar 

 margin or indentations on the lower surface. Distinguished from 

 S. mamillaris by higher spire, non-acuminate apex, rounded base, 

 and more rounded periphery. 



Major diam. 11, min. 10, axis 8 mm. 



Hob. Southern part of Arakan Range in Bassein district of 

 Pegu. 



B. Depressed, oarinate, smooth, edentulous. 



376. Sesara? inermis, Theobald, J. A. S. B. 1876, 2, p. 184, pi. 14, 



fig. 2. 



Shell minutely perforate, depressed, sublenticular, amber- 

 coloured, horny, smooth, polished, finely obliquely striated above, 

 subobsoletely and radiately beneath ; spire very low, suture 

 impressed ; whorls 6J, convex, the outer whorls flattened extern- 

 ally, the last not descending, striately and compressedly keeled, 

 moderately convex below ; aperture nearly vertical, rather narrow, 

 sharply angulate at the periphery, without teeth ; peristome 

 white, thickened inside, basal margin strongly arcuate, columellar 

 rather sharply curved and vertical at its insertion, scarcely re- 

 flected. 



Major diam. nearly 12, min. nearly 11, axis 5 mm. 



Hob. Sal win Valley, near Moulmeiu. 



A species of somewhat doubtful affinities. 



C. Trochiform, smooth, imperforate or narrowly perforate. 

 a. A palatal tooth present. 



377. Sesara? diplodon, Bens. (Helix) A. M. N. H. (3) iii, 1859, 



p. 187; Pfr. Mon. Hel. v, 1868, p. 256; H. fy T. C. L 1876, 

 pi. 60, fig. 8 ; Godwin- Austen, J. A. S. B. 1876, 2, p. 312 ; 

 Nevill, J. A. S. B. 1877, 2, p. 17 ; id. Hand-l i, 1878, p. 53 

 (pt.). 



Shell minutely perforate, trochiform, thin, smooth, finely 

 striated and decussated with close microscopic spiral lines through- 

 out, polished beneath, pale horny ; spire almost conical, varying 



