MALACOZOA. GASTEROPODA. PriMOBRANCHIATA. 81 



yellowish band, on the sides and upper part rugoso-granu- 

 late, as is the neck. The general colour grey, with a broad 

 band of brown along the side of the foot and neck, succeeded 

 on the latter by a pale band, and an upper brown band, with 

 a medial narrow whitish line above. The upper tentacula 

 are very long, subulate, granulated, dusky-brown, and termi- 

 nated by a globose knob, on the summit of which is the black 

 eye, the fore part of the head convex, decimate, granulate ; 

 the lower tentacula short, but similar, the mouth covered by 

 a bifid obtuse flap. 



Found here and there in the maritime and lower inland 

 tracts, especially in gardens, about old walls, and on hedge- 

 banks, but chiefly along the coast. At the approach of 

 Winter retires into holes, where great numbers are often found 

 adhering to each other. 



The eggs, which are covered with a soft white membrane, 

 are deposited in July among the roots of the herbage, and by 

 the end of Autumn the young are about the size of a hazel- 

 nut. Where numerous, this species is very destructive to 

 garden produce. " Olera depascunt et omnigenam herbam ; 

 neque ipsa poma intacta relinquunt," says Martin Lister, who 

 gives a much better account of its structure and habits than 

 one who had read our more modern works on British Mollusca 

 could expect. 



Helix asperse Muller, Terra. Terr, et Aquat. ii. 59. — Helix 

 aspersa. Mont. Test. Brit. 407. — Helix hortensis. Penn. Brit. 

 Zool. 136. PI. 84. f. 129.— Helix aspersa. Flem. Brit. Anim. 263. 

 —Helix aspersa. Drap. Moll. Terr, et Flew. 89. PI. 5. f. 23.— 

 Helix aspersa. Grey's Turt. 128. — Helix aspersa. Lamk. Syst. 

 vi. 2. 68.— Helix hortensis. Perm. Brit. Zool. iv. 136. T. 84. f. 

 129. — Cochlea vulgaris major, pulla, maculata, et fasciata, hor- 

 tensis, List Anim. Angl. 113. PI. 2. f. 2. 



2. Helix arbustorum. Single-banded Snail. 



Shell subglobose, perforate, moderately thick, faintly rugose ; 

 the whorls four, the last very convex ; the aperture semi- 

 elliptical or roundish, lunate, the margin thick, reflexed, and 

 white ; the whorls brown, marbled with brownish-yellow, and 

 having a longitudinal dark-brown band. Diameter about an 

 inch. 



Animal generally with the head and upper part of the foot 

 greyish-black, the rest of the body dusky, variegated with 

 whitish, a black line corresponding to that on the shell, the 

 lower surface of the foot yellowish-grey. 



