LYMN^A. 67 



8. L. gla'bra,* MiJLLER. Pl. v. 



Body rather opaque, dark slaty-grey above, somewhat paler 

 below, finely spotted with black ; tentacles curved, broad at 

 their base, somewhat pointed at the tips, rather transparent, 

 pale grey ; eyes situated on prominent tubercles, round, black ; 

 foot truncate in front, rounded behind. 



Shell elongated, cylindrical, gradually tapering, thinnish, 

 rather glossy, greyish or brownish horn-colour ; sculpture similar 

 to, but somewhat fainter than that of the last species ; whorls 

 7-8, rounded, not very tumid, body whorl scarcely half the 

 length of the shell ; spire produced, tapering to a moderately 

 fine point ; moitth oblong-ovate, acutely contracted above, with 

 a broadish, white internal rib, which is slightly removed from 

 the margin ; outer lip thin, very slightly reflected ; inner lip 

 thickish, spread on the base of the penultimate whorl ; fold 

 sharp ; umbilical cleft very minute. 



Inhabits ditches and ponds In many of the English 

 counties, as well as in some parts of Ireland. In 

 Scotland it has been found near Perth (Buchanan 

 White), S.N., vol. i. p. 26, Frankfield Loch near 

 Glasgow (Dougall), * Trans. Glasgow Nat. Hist. Soc.,' 

 vol. i. p. 192 ; but it is a local species. This is an 

 inactive and very timid creature, and as it rarely 

 floats on the surface of the water, must be searched 

 for by scraping with the spoon or net along the sides 

 and bottom of the ponds or ditches where it lives. The 

 eggs, in number from fifteen to thirty, are enclosed in 

 a transparent, oblong capsule, which is attached to 

 stones, the stems and leaves of aquatic plants, and 

 sometimes even to the shells of other species. 



Var. elongata. — Spire considerably more produced. Near 

 Wakefield, common (J. Hebden), near Birmingham (G. Sherriff 

 Tye), J.C. Near Colchester (R. R.). 



* Smooth, 



F 2 



