COLIMACEA. 33 



1. BULIMUS 013SCURUS, pi. IV, f. 24, 24.* 



Bulimus obscurus, Drapcrnaud, Hist, des Moll., p. 74, pi. 4. 

 f. 23 ; Pfcift'er, I, p. 52, pi. 3, f. 11 ; Brard, p. 97, pi. 3, f. 19 ; 

 Fleming, Brit. An., p. 265; Brown, Illust. Conch., p. 36, pi. 14, 

 f. 19, and pi. 18, f. 13; lb.. First Ed., pi. 41, f. 19; Turton, 

 Man., p. 81, f. 63; Jeffreys, Linn. Tr., XVI, p. 343; Alder, 

 Mag. Zool. and Bot., II, p. 109; Thompson, Ann. and Mag. 

 Nat. Hist., VI, p. 35 ; Bulimus hordaceus, Bruguiere, Ency. 

 Meth., p. 331, No. 62; Lamarck, An. San. Vert., VI, pt. 2nd, 

 p. 125; E)ia ohscura, Leach, Moll., p. 113; Helix obscura, 

 Mailer, Verm., p. 103; Montagu, Test. Brit., p. 391, pi- 22, 

 f. 5 ; Maton and Racket, Linn. Tr., VIII, p. 212, pi. 5, f. 11 ; 

 Brown, Wernerian Mem., II, p. 529; lb., Ency. Brit., 6th Ed., 

 VI, p. 461 ; Turbo vupium, List. Angl., pi. 2, f. 3 ; Da Costa, 

 Brit. Conch., p. 90. 



Variety 1, pi. IV, f. 24.* 



Shell subcylindrical, subconic, of an opaque brownish horn- 

 colour ; body not half the length of the shell ; spire consisting 

 of five or six somewhat inllated volutions, well defined by the 

 suture, covered with longitudinal slight substria?, or wrinkles, 

 and terminating in a rather obtuse apex; aperture oblong-oval; 

 outer hp even, and white; inner lip white, and reflected on the 

 columella, with a slight subumbilicus behind. Length three- 

 eighths of an inch ; diameter one-third its length. 



The young shell is conical, or pyramidal, and in the very- 

 early stages trochiform, with the aperture subquadrangular. 



This species can only be distinguished from the B. montanus 

 by its inferior size, its white lip, and in its volutions being some- 

 what more inflated. 



Found amongst moss in moist places, under stones, and on 

 old walls, and also on rocks ; in which last locality I found 

 some fine specimens near Sunderland. It is by no means rare 

 in England, and I met with it on a dry mud wall, near Clo- 

 iiooney Barracks, King's County, Ireland; and Mr. Thompson 

 says, that Robert Ball, Esq., pointed out a locality in the 

 demesne of Woodlands, near Dublin, where it is found at the 

 roots of trees. It has been met with by the Rev. B. J. Clarke, 

 at La Bergeric, Portarlington ; and at Laore, County of Antrim, 

 by W. H. Harvey, Esq. 



I found a very distinct variety of this species in the limestone 

 F 



