St. Helena, Ceylon, and China. 265 



The obliquity and proportion of the aperture to the spire, iu 

 dependently of the colouring, distinguish this species from Bu- 

 limus lavus and its allies ; and the distinct perforation, and the 

 convexity of the whorls, separate it from the smaller Javanese 

 species B. Galericulum, Mousson, with which it has several cha- 

 racters in common. 



6. Cyclustoma halophilum, nobis, n. s. 



Testa umbilicata, globoso-turbinata, glabra, obsolete longitudiualiter 

 striata, cornea, translucente, fasciis 1-3 rufo-castaneis (submediana 

 angusta semper existeute) ornata ; spira conica, apice exsertiuscula, 

 sutura impressa ; anfractibus 4-4^ convexis, ultimo rotundato ; 

 apertura circulari, superne leviter angulata, peristomate tenui, ex- 

 pausiusculo, margine columellari leviter emarginato ; umbilico 

 profundo. Operculo corneo, tenui, planato, multispirato. 



Diam. major 5, minor A\, axis 4} mill. 



Hab. ad Point de Galle, Ceylon. 



This pretty and distinct little species I found creeping among 

 grass, and on the inner foot of the sea-wall of the Fort at Point 

 de Galle, in April 1847. It was also lying concealed under 

 stones, as well as the common Indian shells Bulimus gracilis and 

 Pupa bicolor, Hutton. The situation is exposed and bare of 

 trees, only a solitary palm crowning one of the isolated rocks 

 which battle with the surge outside the rampart. On the other 

 side of the harbour, in a mangoe grove beyond the hill of 

 Bonavista, Cyclostoma Hoffmeisteri*, Troschel, with its curious 

 operculum, and luiraerous examples of Cyclostoma Involvultis, 

 Miiller (var. with a double peristome), crept among the fallen 

 leaves on the moist ground ; among them were strewn perfect, 

 but deserted shells of Bulimus trifasciatus, Bnig., and Achatina 

 Ceylunica, Pfr. The surrounding trunks of the mangoe trees 

 were literally incrusted with living specimens of Helix hama- 

 stoma, with its gorgeous red peristome and chestnut and milk- 

 white bands, the splendour of which was invariably con- 

 cealed by a coating of green fsecula, which served in some 

 measure to sci-een the shells (which would otherwise, by the 

 contrast of colours, have been too conspicuous to their ene- 



* Then recently discovered by the Physician after whom it was named, 

 who fell, soon after, in the deadly field of Ferozshehv. The characters are 

 shortly given in the Zeitschr. fiiv Malak. for Feb. 1847, pp. 44, 45. 



Troschel makes it the tj-pe of his genns Aulopoma, with reference to the 

 solute ajjertni-e, and to the operculum, which laps over the edge of the 

 peristome, all round, and is incapable of being withdrawn into the shell, as 

 in other Cyclostomata. I add the characters of the animal from my notes : 



Tentacula short, obtuse, and black. Eyes (at the base of the tentacula) 

 prominent, and hemispherical, jet-black anteriorly, whitish posteriorly. 

 Foot livid. 



