308 CYCLOSTOMATID^. 



ascribed to Eschscholtz and used for the reception of some 

 marine shells which are allied to Patella, The present 

 genus was (according to Charpentier) named Papula by 

 Agassiz. 



Acme lineata*, Draparnaud. 



Bulimus lineatus, Drap. Tabl. Moll. p. 67. A. lineafa, F. & H. iv. p. 204, 

 pi. cxxv. f. 7. 



Body milk-white speckled with brown, nearly transparent ; 

 mantle dark-brown: snout very narrow, tumid, and curved, 

 marked transversely with flat, parallel and indistinct wrinkles : 

 tentacles nearly cylindrical, diverging, whitish, very finely 

 wrinkled across, each of them encircled at its base by a ring 

 of dark spots ; their extremities nearly pointed : foot rounded 

 in front, with a narrow tail. 



Shell oblong- cylindrical, semitransparent and glossy, yel- 

 lowish-brown, marked in the line of growth with remote curved 

 grooves or deep striae, of which there are from twenty to thirty 

 on the body whorl, as well as with a few slight and obscure 

 spiral lines : J3e;'/p7i^r?/ rounded : epidermis of moderate thick- 

 ness : luhorls 6-7, compressed, the last occupjdng about two- 

 fifths of the shell : sjyire rounded at the point : suture distinct, 

 but not deep : moidh pear-shaped, effuse at the base, and con- 

 tracted above into a rather acute angle : outer lip thin and 

 flexuous : pUlar lip reflected : inner lip spread on the colu- 

 mella : umbilicus small and nearly concealed by the reflexion 

 of the pillar lip : operculum flat, sunk deep within the mouth, 

 marked with faint and nregular radiating striae ; spire formed 

 of only two whorls and a half. L. 0-085. B. 0-035. 



Var. 1. alha. Shell white or colourless and transparent. 



Var. 2. sinistrorsa. Sj^ire reversed. 



Habitat : Among decayed leaves in open drains, and 

 under stones which lie close to the ground, in woods 

 throughout a great part of these isles, from Lanark- 

 shire to the extremity of Cornwall, and also in Wales 

 and Ireland (East, West, North, and South), but not 

 everywhere or abundantly. Var. 1. Rejectamenta of 

 * Marked with lines. 



