4<IH Mr. \y. II. Benson oit some new Land Shells. 



Vertigo, lie reports also that he had found, on the Devil's 

 I'eak, a unique minute conical Helix witii acute radiating 

 ribs, together with a small Vitnna, which was crushed in the act 

 of capture. Another new Helix, from a ravine at Simon's Bay, 

 is in a condition too imperfect for description, and an im})erfect 

 shell from the ravine which runs between the Devil's Peak and 

 Table ^Mountain may be another subglobose trauslueent var. of 

 H. Menkenna. 



At St. Helena 'S\v. Layard found a shell, answering to Quoy's 

 description of Succinea St. Heleiup, on the leaves of a Sayittaria, 

 and of an arborescent Fern, in the watercourse of a ravine at 

 Brown's Hill. The animal was whitish below, and, in old speci- 

 mens, reddish mottled with brown above, and with a dark line 

 running from each of the superior tentacles down the back. At 

 the same spot whence he procured Bulimus eowpressilabris, B., 

 he got a single speciuicn of the widely-spread Helix pulchella 

 (which I had detected at the more remote locality of the Cape), 

 and of a decayed shell which could not be distmguished from 

 the North American H. iidnu.^cula, Say. These shells may have 

 been imported into the garden with plants. luder stones, in 

 damp places about Napoleon's Tomb, he found the smaller 

 variety of Pupa anconostoma, Lowe, abundant. This is evi- 

 dently the shell which I got in 18^2 between Plantation House 

 and Stitch's Kidge (Annals, 2nd Series, vol. vii. p. 2G3), and 

 which I lost before I could observe its characters sufficiently. 

 It is found in the Canaries, as well as in Madeira, and by some 

 writers its separation from P. umbilicnta, Drap., is contested. 

 Helix remota, Bens., occurred to Mr. Layard under stones 

 on the upper side of the road leading from Jamestown to 

 Longwood. 



Cycluijliorus convexiusculus, Pfr., var. minor. 



1 had described this shell as new with reference to the de- 

 scri])tion in the Zoological Proceedings for 18.55 of (J. convexi- 

 lUiculus, Pfr., brought from the Cape by Mr. Macgillivray, Dr. 

 Pfeitfer having omitted to notice the obtuse angularity of the 

 periphery of the last whorl. Wishing however to obviate the 

 possibility of error, I applied to Mr. Cuming, who obligingly 

 forwarded the type specimen, which proves to be the same 

 species, only larger by half the diameter, and with a more 

 obtuse apex, the vertex in Mr. Layard's shell being a little more 

 prominent, and the whorls only lour in number. The epidermis 

 is also darker, and more strongly plicate in the smaller variety. 

 The aperture is milky-white internally. Diam.raajor4, minor 3, 

 axis 2 mill. This is the only (hjelophorus certaiidy known to 

 inhabit the African continent. 



