36 



MOLLUSCA. 



[Trachelipoda 



1. Achatina acicula, pi. XIV, f. 82, and pi. XVIII, f. 

 12*— Erst Ed., pi. 41, f. 82. 



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

 133 ; Fleming, Brit. An., p. 267; 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 ; Buccinum terrestre, Montagu, Test. 

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

 p. 139; Buccinum acicula, Muller, 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 limestone 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 47 — 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. 



1. Bulimus obscurus, pi. XIV, f. 19, and pi. XVIII, f. 

 13 First Ed., pi. 41, f. 19. 



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

 f. 23 ; Pfeiffer, I, p. 52, pi. 3, f. 1 1 ; Brard, p. 97, pi. 3, f. 19 ; 

 Fleming, Brit. An., p. 265 ; Turton, Man., p. 81, f. 63; Jef- 

 freys, 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; Ena obscura, 

 Leach, Moll., p. 113; Helix obscura, Muller, Verm., p. 103; 

 Montagu, Test. Brit., p. 391, pi. 22, f. 5 ; Maton and Rackett, 

 Linn. Tr., VIII, p. 212, pi. 5, f. 1 1 ; Brown, Wernerian Mem., 

 II, p. 529; lb, Ency. Brit., 6th Ed, VI, p. 461 ; Turbo rupium, 

 List. Angl, pi. 2, f. 3 ; Da Costa, Brit. Conch, p. 90. 



Variety a, pi. XIV, f. 21. 



Shell subcylindrical, subconic, of an opaque brownish horn- 

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

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

 suture, covered with longitudinal slight substrise, or wrinkles, 

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

 outer lip 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 we found 

 some fine specimens near Sunderland. 



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

 quarry on the top of the East Lomond hill, Fifeshire, and 

 named it B. brevis, pi. XIV, f. 21. It differs from the ordinary 

 variety in being much shorter, and greatly more inflated in pro- 

 portion to its size, with the apex more acute. 



2. Bulimus montanus, pi. XIV, f. 22, and pi. XVIII, f. 

 14.— First Ed, pi. 41, f. 22. 



Bulimus montanus, Drapernaud, Hist, des Moll, p. 74, pi. 4, 

 f. 22; Pfeiffer, I, p. 52, pi. 3, f. 10; Sturm, Fauna, VI, pi. 6; 

 Turton, Man, p. 80, f. 62 ; Alder, Mag. Zool. and Bot, II, p. 

 1 09 ; Bulimus montacutus, Jeffreys, Linn. Tr, XVI, p. 345 ; 

 Bulimus Lackhamensis, Fleming, Brit. An, p. 265 ; Thomp- 

 son, Ann. and Mag. Nat. Hist, VI, p. 35 ; Ena montana, 

 Leach, Moll., p. 113; Helix Lackhamensis, Montagu, Test. 

 Brit, p. 394, pi. 11, f. 3; Brown, Wernerian Mem, II, p. 529; 

 lb, Ency. Brit, 6th Ed, VI, p. 461 ; Maton and Rackett, 

 Linn. Tr, VIII, p. 212. 



Shell subconic, oblong, of a dull rusty or reddish-brown, 

 longitudinally, obliquely, and irregularly wrinkled, or striated, 

 somewhat, like shagreen when viewed through a strong lens ; 

 body a little more than a third of the shell in length ; spire 

 consisting of six nearly flat-sided volutions, well divided by the 

 suture line, terminating in a rather obtuse apex ; aperture 

 subovate ; outer lip reflected, and of a chocolate-brown colour ; 

 pillar lip reflected on the columella, forming a subumbilicus 

 behind it. Length somewhat more than five-eighths of an 

 inch ; and a quarter of an inch in diameter. 



Found at Lackham, in Wiltshire, by Colonel Montagu ; met 

 with sparingly in the debris of Salisbury Crags, at Edinburgh ; 

 and I found it at Castle Willan, near Maryborough, Queen's 

 County ; and in the debris of the mountains of Mourne, 

 Ireland. 



The young shells of this, like those of the preceding species, 

 are trochiform ; and the adult is liable to considerable variety 

 in colour. 



3. Bulimus lubricus, pi. XIV, f. 20 — First Ed, pi. 41, 

 f. 20. 



Bulimus lubricus, Bruguiere ; Lamarck, An. San. Vert, VI, 

 pt. 2nd, p. 126; Drapernaud, Hist, des Moll, p. 75, pi. 4, f. 24; 

 Brard, p. 98, pi. 3, f. 20; Pfeiffer, I, p. 50, pi. 3, f. 7; Turton, 

 Man, p. 82, f. 65 ; Fleming, Brit. An, p. 265 ; Achatina lubrica, 

 Thompson, Ann. and Mag. Nat. Hist, VI, p. 36 ; Alder, Mag. 

 Zool. and Bot, II, p. 110; Forbes, Mai. Mon, p. 10; Cionella 

 lubrica, Jeffreys, Linn. Tr, XVI, p. 347 ; Zua lubrica, Leach, 

 Moll, p. 114; Helix lubrica, Muller, Verm, II, p. 104; Mon- 

 tagu, Test. Brit, p. 390, pi. 22, f. 6 ; Brown, Wernerian Mem, 

 II, p. 529; lb, Ency. Brit, 6th Ed, VI, p. 461 ; Maton and 

 Rackett, Linn. Tr, VIII, p. 213, pi. 5, f. 12; Turbo glaber, Da 

 Costa, Brit. Conch, p. 87, pi. 5, f. 18. 



Shell extremely smooth, glossy, and pellucid, of a brown or 

 greenish horn-colour ; body about half the length of the shell ; 



