Bulimus. MOLLUSCA. PULMONIFERA. S65 
4. H. striata. — Conical, depressed, subcarinated, obliquely striated, a 
rising band around the edge, crossed by arched striae ; columella solid, aper- 
ture subtriangular. — Sower. Min. Conch, t. clxxi. f. 1. — Carboniferous Lime- 
stone, Derbyshire. 
5. H. cirriformis. — Conical, acute, umbilicate, decussato-striated ; with a 
band around the middle of the whorl, crossed with arched striae ; aperture 
nearly round. — Sower. Min. Conch, t. clxxi. f. 2 — In Carboniferous Limestone, 
Derbyshire. 
6. H. IcBvis., — ^Whorls three ; surface smooth ; spire elevated. —Mantell, 
Geol, Suss. 263. t. xviii. f. 19, 20.— In Plastic Clay, Bath. 
7 . H. pusilla Depressed, smooth, umbilicated, convex beneath. Volu- 
tions round and tapering ; their number about three. Mouth roundish 
Mart. Pet. Derb. t. lii. f. 3. — In a fossil pericarp, in Clay Ironstme, Derby- 
shire. 
Gen. XIX. BULIMUS. — Aperture of the shell longer than 
broad, the margin near the pillar entire. 
80. B. acutus. — Whorls nine, rounded, white, with trans- 
verse interrupted brown stripes. 
Buccinum exiguum fasciatum et radiatum. List. Conch, t. xix. f. 14. — 
Helix acuta. Mull. Verm. ii. 100. — Turbo fasciatus, Penn. Brit. Zool. 
iv. 131. Mont. Test. Brit. 346 — Bui. acutus, Drap. Moll. 77 On 
dry banks near the sea. 
Length fths of an inch ; whorls strongly wrinkled across, sometimes a 
single or double longitudinal brown band on the lower side of the body- whorl. 
Margin of the mouth a little reflected on the small pillar-cavity. — Animal 
pale yellow. 
81. B. obscurus. — Shell brown, oblong, subcylindrical in the 
middle, with a blunt spire; outer-lip of the mouth nearly 
straight. 
Buccinum rupium majusculum circiter senis orbibus circumvolutum. 
List. An. Ang. 122 — Helix obscura. Mull. Verm. ii. 103 Turbo sex 
anfractibus striatis apertura subrotunda marginata. Walk. Test. Min. 
Bar. t. ii.cf. 41. Mmt. Test. Brit. 391 . — B. obs. Drap. Moll. 74. — Moist 
woods and rocks. 
Length fths of an inch ; breadth about one-third of its length : whorls 
from five to seven, with faint lines of growth, slightly rounded, ending in a 
blunt knob ; pillar-lip nearly perpendicular, a little reflected on the pillar- 
cavity ; peristome white. 
82. B. Lackhamensis. — Shell brown, oblong, subcylindrical 
in the middle, with a blunt spire ; outer- lip rounded. 
Helix Lack. Mont. Test. Brit. 394. — Bui. montanus, Drap. Moll. 74. — 
In woods, England. 
Length |ths of an inch ; breadth one-fourth of the length. Similar in 
other respects to the B. obscurus except size, the lines of growth stronger, and 
the outer edge of the mouth a little more rounded. Judging from an au- 
thentic specimen sent to me by the late Mr Montagu, it seems to be only a 
large variety of the preceding species. 
83. B. luhricus. — Shell glossy, horn-coloured, bluntly taper- 
ing ; mouth, externally, narrow. 
