32 COLIMACEA. 



Distinguished from Bulimus by the abrupt teriTiination of the 

 pillar lip. 



1. ACHATINA ACICULA, pi. IV, f. 28, 29. 



Achatina acicula, Lamarck, An. San. Vert., VI, pt. 2nd, p. 

 133; Fleming, Brit. An., p. 267; Brown, Illust. Conch., p. 36, 

 pi. 14, f. 82, and pi. 18, f. 12; lb., First Ed., pi. 41, f. 82; 

 Achatina alba, Turton, Man., p. 89, pi. 71 ; Alder, Mag. Zool. 

 and Bot., II, p. 110; Thompson, Ann. and Mag. Nat. Hist., 

 VI, p. 37 ; Bulimus acicula, Bruguiere, Ency. Meth., 22 ; 

 Drapernaud, Hist, de Moll., p. 75, pi. 4, f. 25, 26 ; Brard, p. 

 100, pi. 3, f. 21 ; JBuccinum terrestre, Montagu, Test. Brit., 

 p. 248, pi. 8, f. 3; Maton and Racket, Linn. Tr., VIII, p. 

 139; Buccinum acicula, Miiller, Verm., II, p. 150; Dillwyn, 

 Des. Cat., p. 652 ; Cionella acicula, Jeffreys, Linn. Tr., XVI, 

 p. 348. 



Shell white, pellucid, smooth, glossy ; body occupying about 

 half the length of the shell; spire taper, consisting of five nearly 

 flat-sided volutions, well defined by the suture ; aperture 

 oblong-ovate, subtruncated at the base ; outer lip thin, even ; 

 pillar lip thickened, and a little reflected on the columella. 

 Length a quarter of an inch ; and hardly a fourth of its length 

 in diameter. 



This species is not uncommon in many parts of Great Britain 

 and Ireland. It inhabits the roots of grass and trees, especially 

 where there are hmestone rocks ; plentiful in Barham Downs, 

 Kent ; Lackham, Wiltshire ; and at Miltown Malbay, in the 

 neighbourhood of Dublin ; La Bergerie, Queen's County ; 

 Castle Martyr, near Cork ; and at Dromana, County of Water- 

 ford, by Miss M. Ball of Dublin. 



Genus XV BULIMUS— Lamarck. 



Shell oval, or oblong, generally thin, and covered with a 

 slender epidermis ; spire obtuse, variable in length, and in the 

 number of its volutions, which for the most part are few ; aper- 

 ture oval, wide, anteriorly rounded ; outer lip simple, reflected, 

 continuous, and joining the columella without an emargination ; 

 columella smooth, straight, without a truncature, or widening at 

 the base. 



