172 P. Stoliczka — Notes on terrestrial Mollusca. [No. 2, 



JTab. Moulmein, provincia Tenasserim. 



The animal is grey with somewhat, darker, very short pedicles and 

 almost obsolete tentacles. The columella of the shell is at the base 

 peculiarly expanded, flattened, somewhat twisted, producing at the 

 lower part a small denticle. Out of a great number of specimens 

 only one was met with which has a small tooth about the middle of 

 the inner or parietal lip ; its presence, therefore, must be regarded 

 as an exceptional character. 



The species was found on old masonry of the great Pagoda at 

 Moulmein, and on the opposite bank of the river at Martaban on 

 similar wooden structures. 



Hypselostoma Dayamim, n. sp., pi. vii, fig. 2. 



Hypselostoma testa minuta, conoidea, solidula, pallide brunnea, 

 apice obtusiuscula, late profundeque perspective umbilicata ; an- 

 fractibus 4, convexis, suturis profundis sejunctis, primo hevigato, 

 submammillato, ceteris striis incrementi subobsoletis notatis, ultimo 

 maximo, fere plane voluto, supra ad peripheriam subangulato, 

 deinde sensim angustiore et ad marginem umbilici rursus obtuse 

 angulato ; apertura fere verticali, vix descendente, conspicuiter dila- 

 tata, subcirculari ; marginibus junctis, intus crassiusculis et plicose 

 dentatis ; labio adnato modice expansiusculo, bidentato, dente 

 superioremajore ; labro six-dentato : dentibus duobus in regione 

 columellari sitis subdistantibus, alteris duobus, in margine externo, 

 similariter inter se remotis, sed duobus in marg. basali sitis ap- 

 proximatis, parvis. Diam. maj. 1*1, d. min. 0*8; altitudo 1 m.m. 



Hab. Damotha, prope Moulmein. 



A single specimen of this very interesting species was found to- 

 gether with Georissa liratula, Bipplommatina crispata and carneola, 

 &c, &c. on the limestone hill at Damotha. It is the third known 

 species of the genus. In general form it resembles Blanford's H. 

 Bensonianum from near Ava, but differs in the shape of the last 

 whorl and in the dentition of the aperture. The latter is in both 

 species almost vertical, not turned entirely upwards, as in the type 

 of the genus, H. tubiferum. As regards form, the present species 

 indicates still more distinctly the affinities of Hypselostoma to Pupa, 

 than does H, Bensonianum. 



