HELIX. 181 



"pomatia " is derived from TTW/X an operculum, and not 

 from pomum an apple. Pliny and Dioscorides applied 

 the same name to it, and for a similar reason. 



B. Shell globose : outer lip reflected : umbilicus wanting, ex- 

 cept in the young. 



4. H. ASPER'SA*, Miiller. 



H. aspersa, Mull. Verm. Hist. pt. ii. p. 59 ; F. & H. iv. p. 44, pi. cxvi. f . 1. 

 BODY oblong, narrow and rounded in front, pointed behind, 

 dark-brown or dirty-grey, mottled with milk-white specks, 

 coarsely and strongly granulated : tentacles long and slender, 

 considerably diverging from each other, brown; bulbs small : 

 foot broad, rounded in front and finely pointed behind, having 

 a narrowish border of yellow, and transversely wrinkled. 



SHELL globular, rather solid, opaque, not glossy, yellowish, 

 with spiral dark-reddish-brown bands ; these bands are often 

 five in number on the last whorl and three on the preceding 

 one, but some of them are frequently confluent, and they are 

 always more or less interrupted by transverse and zigzag 

 streaks of white : the sculpture consists of numerous pit- 

 marks, which probably correspond with the tubercles of the 

 mantle, as well as of very fine, but indistinct, spiral striae, 

 giving the surface a shagreened appearance : epidermis rather 

 thick : whorls 4 J, convex, the last occupying about two-thirds 

 of the shell : spire short and ending in a blunt point : suture 

 rather oblique, well defined but not deep : mouth obliquely 

 roundish-oval, obtusely angulated above : outer lip rather- 

 thin, white and considerably reflected, much incurved to- 

 wards the columella : inner lip extremely thin and spread 

 on the columella : umbilicus slightly perceptible in the 

 young, but afterwards covered by a fold and thickening of 

 the pillar lip. L. 1-4. B. 1-4. 



Yar. 1. albo-fasciata. Shell reddish-brown, with a single 

 white band. 



Var. 2. exalbida, Menke. Shell yellowish or whitish. 



Var. 3. conoidea, Picard. Shell smaller, more conical, 

 and thinner : mouth smaller. 



* Besprinkled. 



