St. Helena, Ceylon, and China. 263 



This shell, which exhibits in some degree the port of a Lymn<2a, 

 is distinguished from any Succinea with which I am acquainted 

 by the breadth of the body whorl behind the columella, a part 

 which is generally attenuated in the genus, although the Indian 

 species, S. crassiuscula, nobis, approaches it in this respect ; the 

 vertical direction of the columellar lip is also peculiar. 



3. Helix remota, nobis, n. s. 



Testa subaperte umbihcata, depressa, glabra, transluceute, lutescente- 

 coniea, fasciis tenuibus pallidis ra appareutibus circumdata ; spira 

 subplanulata, sutura submargiuata ; anfractibus 4| convexiusculis, 

 sensim accrescentibus, ultimo subtus convexo ; apertura vix obli- 

 qua, nullo modo depressa, subrotundato-lunari ; peristomate recto, 

 acute, simplice, superne arcuato, margine columellari non reflexo. 



Diam. major 7, minor 5^, axis 2\ mill. 



Hab. in insula St. Helense in locis elevatis. 



This shell belongs to the group which includes the European 

 species Helix cellaria, alliaria, and nitida. The absence of any 

 oblique depression of the mouth, and its colour, sufficiently serve 

 to distinguish it from the two first ; while its colour, more de- 

 pressed form, and the umbilicus, separate it fi-om the last. In 

 1832 I took three specimens under moist stones, between Plan- 

 tation House and Stitch's ridge, as well as in the mountain 

 valley which then contained the Tomb of Napoleon. 



This may be the snail noticed in Cooke's fu-st Voyage as found 

 on the top of the highest ridges at St. Helena, and which excited 

 the wonder of the narrator " how it could find its way to a place 

 so severed from the rest of the world by seas of immense extent." 

 The only other land shell which occurred to me in a day's excur- 

 sion over the island was a minute Pupa, in form resembling some 

 of our smaller English species, which I unfortunately lost, owing 

 to the efforts made by a Carabus, with golden puncta in the 

 furrows of the elytra, to escape from imprisonment. This loss 

 was the more vexatious, wdth reference to the scarcity of extra- 

 European species, and more especially of that particular tj-pe. 



Bulimus Helena, Quoy, is another recent terrestrial species 

 belonging to the island. It may be the shell referred to by 

 Capt. Grey (Journal of two Expeditions in Australia) as lying 

 on the sides of the hills, on the road from Flagstaff Hill to 

 Jamestown. The shell described by Pfeiffer as this species is 

 represented by Lovell Reeve, ' Conch. Icon.' fig. 308, as Bulimus 

 digitalis, R., but Pfeiffer still holds to the opinion that he himself 

 is correct in his reference. In this case, and if the shell figured 

 by Reeve, No. 806, as B. Helena, be truly an inhabitant of the 

 island, it will make the number of its known recent land shells 

 amount to six. I have evidence that the shell, to which Pfeiffer 

 refers Quoy's species, inhabits the assigned locality. 



