toith descriptions of some new species. 269 



p. 193, that C. Indicum extended its range to the Nilgherries, 

 requires to be expunged^ having reference to the present speciea, 

 while C. Indicum is not at present known to extend beyond the 

 vicinity of Bombay. 



The young of C. Nilagiricum preserves its distinctness from 

 C. Jerdoni in the same condition by its sculpture, colour, the 

 depression of the spire, the broad flattening observable above the 

 shoulder of the whorl, the angulation of the shoulder, the exca- 

 vation of the periomphalum, its compressed angulated edge, and 

 by the blue colour of the interior, which is bordered with chest- 

 nut in the young, but gradually gives place to the orange of the 

 peristome in the adult example of C. Nilagiricum, while the 

 whole of the interior is white in both states of C. Jerdoni, The 

 spiral striae are not very conspicuous on the underside of C. Nila- 

 giricum, and are entirely discontinued at a short distance from 

 the periphery, the region of the umbilicus being smooth. In 

 most of the allied species the umbilicus and its neighbourhood 

 are pale, but in this species the dark chestnut ground colour of 

 the shell extends over the whole exterior surface where not 

 broken by flecks or streaks of whitish. Dr. T. Jerdon procured 

 it from the forest on the western edge of the Nilgherries, while 

 C. Jerdoni was found by him to inhabit the north-east face of 

 the same mountain group. 



2. Cyclostoma Malayanum, nobis, n. s. f V; , T^J 



Testa depresso-turbinata, laevigata, spiraliter exilissxme obsolete stri- 

 ata, supra castanea, albido undulatim strigata, -interdum plurifas- 

 ciata, subtus albida, castaneo anguste fasciata, infra periphseriam 

 fascia latiuscula saturata, albido sparse articulata, ornata; spira 

 exsertiuscula, apice acutiuscula ; anfractibus quinque subconvexis, 

 ultimo rotundato, subtus convexo ; apertura vix obliqua, magna, 

 circulari, albida; peristomate duplicato, leviter adnato, externo 

 plane expanso, superne areuato, labio angusto ; umbiUco mediocri, 

 pervio, subp^rspectivo. 



Diam. major 43, minor 32, axis 29 mill. 



Hab. in montibus vallibusque Insularum Penang et Lancavi, necnon 

 in Peninsula Malayana. Teste Dr. T. Cantor. 



This shell, collected by Dr. Cantor, is one of the group which 

 contains C Pearsoni, Siamense, Tuba, &c. The peculiarly flat- 

 tened double peristome will at once serve to distinguish it from 

 any of the allied species. The colouring also is of a particularly 

 sober character. 



3. Cyclostoma Anostoma, nobis, n. s. 



Testa perforata, turrita, tenui, exiliter striata, pallide castanea, apice 

 acutiuscula albida ; anfractibus septem convexis, ultimo antice bre- 



