Mr. Alder's Catalogue of Land and Fresh-wafer Shells. 33 



curious, slender, and nearly smooth variety (Clau. parvula, Turt. in Zool. Journ. v. ii. 

 p. 556,) is also found in Causey Dean, Tanfield. 



Gen. BALEA. 



27. B.fraffilis, Gray, in Zool. Journ. v. i. p. 61. 



Turbo perversus, Mont. 

 Castle Eden, Durham. 



Gen. PUPA. 



28. P. edentula, Flem. 



P. muscorum, Drap.? 



P. edentula, Drap.? 



Vertigo cylindrica, Ferussac ? 

 Amongst long grass in woods ; not unfrequent. 



This shell partakes of the characters of both Pupa muscorum and edentula of Drap ar- 

 NAUD. It agrees with the former in being exactly cylindrical, with 6 or 7 whorls, and 

 having the aperture, in old shells, slightly reflected. In none of the specimens I have 

 had an opportunity of examining is there any indication of a tooth ; but this, as in 

 Baleafragilis, may only occasionally occur in very large and perfect specimens ; and 

 we are informed by Dr. Fleming, that Mr. Miller is in possession of a variety of this 

 shell with " a very minute tooth on the pillar." Upon the whole, I am inclined to be- 

 heve, that this is the true P. muscorum of Draparnaud, and that his P. edentula is 

 either a variety of the same, or a species that we do not possess. The Turbo musco- 

 rum of LiNNiEus, like that of Montagu, probably included more than one species. 



29. P. marginata, Drap. 



P. muscorum, Lam. 

 Turbo Chrysalis, Turt. Conch. Diet. 

 On dry banks near the sea ; frequent. 



30. P. umbilicata, Drap. 



P. muscorum, Flem. 

 Turbo muscorum, Turt, Conch. Diet. 

 Under stones, common ; seldom in moss. 

 31. P. anglica. 



Vertigo anglica, Ferussac. 

 Shell ovate-cylindrical, rather obtuse, horn-coloured, with 6 or 7 whorls, slightly stri- 

 ated ; aperture sub-angulated, with 4 teeth running into the interior of the shell, 2 of 

 which (the first large and the other small) are on the body whorl, one on the columella 

 and one on the outer lip ; lip thickened, reflected, and very much contracted towards 

 the middle of the outer margin, where it is further thickened internally by a knob-like 

 projection, so as nearly to meet the first tooth ; umbilicus deep ; length ^th of an inch. 

 VOL. I. F 



