Land-snails 347 



the reproductive opening at tlie base of the right lower 

 tentacle. The shell is solid, claw-shaped, with con- 

 centric lines. All the tentacles are short, and without 

 eyes. There is a large slime-gland at the tail, as in 

 Arion. The upper -side is coarsely tuberculated, 

 black spotted with yellow or wliite, as well as being 

 sprinkled with minute specks of black and white. 

 The thick brown foot is transversely furrowed and 

 its sides striped ; the under surface has a broad clear 

 band with a band of light yellow or grey on either 

 side of it. This moUusk was discovered nearly sixty 

 years since, by Mr. Wm. Andrews, on rocks around 

 Lough Carrough, in County Kerry, and it has never 

 been found many miles away from that locality. The 

 discoverer describes the livino; slup- as a thins: of 

 beauty, and Dr. Scharff has more recently pointed 

 out that its colouring is of the protective kind, 

 harmonising so admirably with the lichens that 

 cover the rocks where it is found that the slug does 

 not hesitate to lie extended among them even when 

 exposed to sunshine. 



The snail-like slugs are succeeded by the genus 

 Helix, whose members are understood more par- 

 ticularly when the word Snail is used. All the 

 species are provided with a shell sufficiently roomy 

 to accommodate the entire animal, but it varies 

 considerably in size, shape, colour, and ornamentation. 

 It may be disk-shaped, round, or nearly so, or conical. 

 The lip is frequently strengthened by an internal rib, 

 and there is usually an umbilicus. The animal has 

 a thick mantle which lines the shell, and the head 

 bears a couple of pairs of tentacles, the upper pair 

 carrying the e3^es at their tips. Its mouth is 



