COLIMACEA. (U 



Sub- Gen us 3 . — A m plexus. — Bro wn . 



Shell depressed, with an orbicular aperture; peristome con- 

 tinuous and reflexed ; epiphragm membranaceous. 



8. Helix pulchella, pi. VII, f. 4, 5. 



Helix pidchella, Mi'iller, Verm. Hist., II, p. 30, No. 232 ; 

 Drapernaud, p. 112, pi. 7, f. 33, 34 ; PfelfFer, I, p. 43, pi. 2, f. 

 32; Brard. p. 56, pi. 2, f. 9; Alder, Mag. Zool. and Bot., II, p. 

 109; Thompson, Ann. and Mag. Nat. Hist., VI, p. 23; Forbes, 

 Mai. Mon., p. 9; Rossmassler, VII, p. 5, pi. 51, f. 440; Turton, 

 Man., p. 63, pi. 5, f. 49 ; Amplexus paludosus. Brown, Illust. 

 Conch., 1st Ed., pi. 41, f. 76, 77; Helix pidchella, Brown, 

 Ency. Brit., 6th Ed., VI, p. 459 ; Helix paludosa. Da Costa, 

 Brit. Conch., p. 59; Walker, Test. Min. Rar., f. 22; Montagu, 

 Test. Brit., p. 440 ; Maton and Rackett, Linn. Tr., VIII, p. 

 193, pi. 5, f. 5; Turton, Brit. Fau., p. 188; Brown, Wernerian 

 Mem., 11, p. 524 ; Fleming, Edin. Ency., VII, p. 80 ; Turbo 

 paludosus, Turton, Conch. Diet., p. 228 ; Zurama pulchella. 

 Leach, Moll., p. 108; Helix pulchella, Brown, Illust. Conch., p. 

 45, pi. 14, f. 76, 77. 



Shell smooth, white, subpellucid ; spire depressed, consisting 

 of three rounded volutions, well defined by the sutural line, 

 terminating in an obtuse apex, and very little elevated above 

 the body; body large, elegantly rounded, with a wide and deep 

 umbilicus at its base, exhibiting the convolutions of the spire 

 inside ; aperture circular, with an opaque, white, flattened, re- 

 flected, thickened margin ; the lips not quite meeting on the 

 base of the body. Diameter one-tenth of an inch. 



This elegant little species is pretty generally diffused through- 

 out Great Britain and Ireland. Its favourite habitat being 

 under stones, in dry situations. It is generally more numerous 

 in dry situations around the coast. It is exceedingly numerous 

 at Carolina Park, near Edinburgh ; also on the sand hills at 

 Portmarnock Rabbit Burrow, and Thompson says he found it 

 on the short pastures, in some of the islets, of Lough Strang- 

 ford, Ireland. It is, however, found in inland situations. 



Many authors consider this and the following species merely 

 as varieties ; but we have invariably noticed a difference in the 

 animals. 



