1 64 Bcv. A. M. Norman on the Occurrence of 



Helix (Plectopylis) minor , n. sp. 



Locality. Darjiling hills. 



Shell sinistral, openly umbilicated, discoidal, hirsute. Sculp- 

 ture coarse, with irregular transverse ribbing, near the apex 

 fine and regular ribbing ; colour pale umber, with regularly- 

 disposed broadish transverse bars of sienna-brown ; spire flat, 

 only the first three whorls slightly rising above the others ; 

 suture shallow. Whorls five, subangular on the periphery 

 of the last, which has four distinct rows of short hairs, entire 

 at the point. Aperture oblique, slightly descending; peri- 

 stome lunate, slightly flattened on the upper outer margin, 

 but very little reflected, the inner margins connected with a 

 distinct ridge on the parietal side. 



The parietal vertical lamina is simple, with no distinct hori- 

 zontal plica below it, as in macromphalus ; the palatal plica3 

 are six in front, four behind, the basal one in front thin and 

 longer than the others. 



Plectopylis Hanleyi, n. sp. 



Sikkim ? No history ; only one specimen, in the collection of 

 Mr. Sylvanus Hanley. 



Shell sinistral, depressedly conoid, openly umbilicated, pro- 

 bably hirsute when young. Sculpture coarse, irregular, trans- 

 verse ridges. Colour uniform ochraceous. Spire conoidal ; apex 

 blunt, smooth. Suture well marked. Whorls six, close- 

 wound, convex. Aperture semicircular, diagonal ; peristome 

 somewhat thickened, white, with a thin callus on the parietal 

 margin, not to the extent of a ridge. 



Size — major diam. 5'5, minor diam. 5'0, alt. 3'0 millims. 



Parietal vertical lamina simple ; palatal plicee in two rows, 

 four long in front, four short behind, and one basal long. 



This shell is very distinct ; it has somewhat the form of P. 

 2>lectostoma, but is not so angular on the periphery, while the 

 internal plication is quite different, besides being so very much 

 smaller in size. 



XX. — On the Occurrence of Neomenia (Solenopus) in the 

 British Seas. By the Rev. A. M. Norman. 



The translation of Koren and Danielssen's paper on Soleno- 

 pus } in the * Annals ' for May, relates to a very remarkable 

 new order of Mollusca. It will be of interest to your readers 

 to learn that the type species has long been known to me as 

 an inhabitant of the British Seas ; and though at this moment 



