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Mollusca of Great Britain. 339 
Testa utrinque depressior, fragilis, albida, fasciá superiore 
rufescenti-brunneá aliisque sepé divisis inferioribus. 
Anfractus 5—6. Apertura orbiculata, intüs margi- 
nata: peristomio subreflexo. Umbilicus valdé patens, 
sinu profundo. 
Long. 0.35.— Diam. 0.65. 
Helix ericetorum, 8. Müll. Verm. 2. p. 34. 
Common on heaths, sandy plains, &c. It does not 
exactly agree with any of the varieties of Draparnaud's 
ericetorum or cespitum. 
0. NITIDA. 
Animal cærulescenti-nigrum, politissimum. Tentacula bre- 
via, crassiuscula. 
Testa subdepressa, nitidissima, substriata, fulvo-cornea. 
Anfractus vix 5. Apertura suborbiculato-ovata : pe- 
ristomio simplici. Umbilicus patulus, sinu profundo. 
Long. 0.15.—Diam. 0.275. 
Helix nitida. | Müll. Verm. 2. p. 39. Lam. Hist. des 
Anim. sans Vert. 6. p. 91. 
—-.— nitens. Gmel. Syst. Nat. 1. p. 3633. 
—+-— lucida. Drap. Hist. des Moll. p. 103. t.8. f. 11,12. 
(var.) Mont. Test. Brit. p. 425? 
a. pauló minor, striata; anfractibus 6, sensim decrescenti- 
bus, convexis. 
B. hyalina, albido-virescens. 
Not uncommon under stones, at the roots of rashes te 
in marshy places near Swansea. Some specimens Hiearly 
equal the largest size noted by Müller, 31 lines of our mea- 
sure. The var. 8. I received from Mr. Dillwyn as Irish. 
Gmelin, by changing the name given to this specs by 
Miiller, has created no little confusion. 
i. Nifibo LA. 
