COLIMACEA. 57 



Shell subglobose, thin, subpellucid ; body very large ; spire 

 small, consisting of three narrow, slightly inflated volutions ; 

 aperture transverse, senilelliptical ; inner lip reflected on the 

 base of the columella, and proceeds in nearly a straight line 

 until it joins the outer lip, which is thickened on the edge, and 

 reflected ; both lips invariably of a dark reddish-brown ; whole 

 surface covered with a yellow, citron-coloured, flesh-coloured, 

 or olive, thin, pellucid, glossy epidermis, which allows the fascise 

 to shine through. Diameter generally about an inch ; height 

 three-quarters of an inch. 



This species is subject to very great variety in its colours and 

 markings; some are plain citron, yellow, olive, or flesh-coloured, 

 while others are furnished with from one to five dark umber, or 

 blackish-brown bands on the body, variously disposed. 



Fig. 12 represents the young shell. 



This species is at once distinguished from //. hortensis and 

 hyhrida, from the outer and pillar lips being invariably of a 

 dark brown-colour, while those of H. hortensis are always 

 white, and H, ht/brida of a pale brown, yellowish-brown, or 

 flesh-colour. 



I found the beautiful variety f. 8, at West Coates, Edin- 

 burgh. It has a very pale rose-coloured outer lip, and a white 

 girdle round its body. It is now in the cabinet of Lady 

 Jardine, at Jardine Hall, Dumfriesshire. Mr. Thompson says, 

 he met with extremely large specimens of the //. nemoralis in 

 the south islands of Arran, Ireland. 



The H. nemoralis is the most common of our land shells, 

 being almost universally diffused throughout Great Britain and 

 Ireland. It locates in woody situations. 



4. Helix hortensis, pi. V, f. 19, 20, 21, 22. 



Helix hortensis, Lister, Conch., pi. 3, f . 3 ; Miiller, Verm., 

 II, p. 52, No. 447; GmeHn, Syst. Nat., p. 3649, No. 109; 

 Chemnitz, Conch., IX, pi. 133, f. 1199, 1201; Montagu, Test. 

 Brit., p. 412; Drapernaud, p. 95, pi. 6, f. 6 ; Lamarck, An. 

 San. Vert., VI, pt. 2nd, p. 81 ; Brard, p. 16, pi. 1, f. 3; PfeifTer, 

 I, p. 29, pi. 2, f. 12, 13; Fleming, Edin. Ency., VII, p. 81 ; lb., 

 Brit. An., p. 264; Rossmassler, I, p. 58, pi. 1, f. 6.; Turton, 

 Man., p. 34, pi. 3, f. 24; Alder, Mag. Zool. and Bot., II, p. 106; 

 Jeffreys, Linn. Tr., XVI, p. 330; Forbes, Mai, Mon., p. 8; 

 I 



