Turbo. 
MOLLUSCA. 
73 
Turbo conicus . Sowerby, Min. Conch. V. p. 45, pi. 433, fig. 
1. Fleming, Brit. An. p. 301. 
Shell ovately-conical; body large, ventricose; spire short* 
consisting of four rapidly decreasing ventricose volutions, deeply 
separated by the line of the suture, slightly depressed on their 
upper parts, and terminating in a very acute apex; whole shell 
invested by numerous, very fine spiral striae, crossed by distant, 
very slender lines of growth; base rounded, and provided with 
a small and deep umbilicus; aperture nearly circular, and slightly 
contracted above; outer lip thin, and even; pillar lip not re¬ 
flected on the columella. 
Found in the Green Sand of Blackdown. 
7. T. rotundatus. —The Rounded Turbo, pi. XXXVIII. 
fig. 39, 40. 
Turbo rotundatus. Sowerby, Min. Conch. V. p. 45, pi. 433, 
fig. 2. Fleming, Brit. An. p. 301. 
Shell ovate, subglobose, smooth, with a few longitudinal, 
distant, nearly obsolete lines of growth; body very large, ven¬ 
tricose ; spire short, consisting of five inflated, rapidly decreas¬ 
ing volutions, terminating in a sharp apex; base moderately 
rounded, and provided with a narrow umbilicus; aperture large, 
suborbicular, oblique, somewhat contracted above, and equal 
to about half the length of the shell; outer lip plain; inner lip 
slightly reflected on the columella. 
Found in the Green Sand of Blackdown. 
8. T. obtusus.—T he Obtuse Turbo, pi. XXXVIII. fig. 
45, 46. 
Turbo obtusus. Sowerby, Min. Conch. VI. p. 97, pi. 551, 
fig. 2. 
Shell conical, short; body occupying more than half its 
length; spire consisting of three gradually diminishing volu¬ 
tions, with somewhat flattened sides, and terminating in an 
obtuse apex; base convex, and solid; aperture suborbicular, 
slightly oblique; whole surface covered with numerous fine 
striae, exceeding twelve upon each volution, and crossed by very 
fine, longitudinal, nearly invisible lines of growth. 
Found in the London Clay at AnclifTe. 
9. T. Tiara. —The Tiara Turbo, pi. XXXVIII. fig. 32. 
Turbo Tiara . Sowerby, Min. Conch. VI. p. 97, pi. 551, 
fig. 1. 
Shell short, conical, turban-shaped; volutions few, depressed, 
flattened on the sides, and each crowned by about twenty large, 
somewhat obliquely elongated knobs; body about half its 
length; spire consisting^ six volutions, terminating in a flat¬ 
tened apex; base convex, and umbilicated. 
In the very young specimens the volutions are divested of the 
knobs, as are also the superior volutions in the adult shell. 
Found in the Mountain Limestone, near Preston, Lan¬ 
cashire. 
10. T. bicostatus. — The Double-ribbed Turbo, pi. 
XXXVII* fig. 11, 12, 13. 
Shell short, conical; volutions depressed; body very large; 
spire very short, consisting of two volutions; body girdled by 
two strong, elevated, thick spiral ribs, the lower one near the 
base, and the upper one on the superior portion of the body; 
top of volutions hollow; the inferior rib terminates above the 
outer lip, and the superior one loses itself in the lower volution 
of the spire; aperture suborbicular, subtransverse, and very 
slightly contracted above; outer lip thin; inner lip slightly 
reflected on the columella, and widening as it descends; whole 
shell covered witli distant, strong, irregular, waved, longitudinal 
wrinkles. 
Found by Mr. Samuel Gibson, of Ilebdcn Bridge, in the 
Mountain Limestone at Witherell, near Clitheroe; and is in 
his cabinet. 
11. T. pulcherrimus. — The Splendid Turbo, pi. 
XXXVII* fig. 14. 
Turbo ? pulcherrimus. Phillips, Geo. of Yorkshire, I. p. 
94, pi. 2, fig. 35. 
Shell pyramidal; body considerably shorter than the spire, 
which consists of five gradually tapering volutions, with their 
sides somewhat flattened, terminating in an acute apex; base 
rounded; whole shell covered with very fine, regular spiral 
stria?; the lower and superior portions of the volutions pro¬ 
vided with longitudinal ribs; the most prominent part of the 
body is girdled by an elevated zone, consisting of small, regu¬ 
larly set tubercles; and the whole base covered by a series of 
very small tuberculate girdles. 
This beautiful species was found by Mr. Bean, of Scar¬ 
borough, in the Speeton Clay at Speeton. 
12. T. funiculatus _The Rope-girdled Turbo, pi. 
XXXVIII. fig. 59. 
Turbo funiculatus. Phillips, Geo. of Yorkshire, p. 102, pi. 
4, fig. 11. 
Shell short, subconic; body large; spire small, with few 
volutions; body provided with six or seven strong, elevated, 
transverse, rope-like ribs; base slightly flattened. 
Found in the Coralline Oolite at Malton and Learner. 
13. T. sulcostomus. —The Sulcated Turbo, pi. XXXVIII. 
fig. 60. 
Turbo sulcostomus. Phillips, Geo. of Yorkshire, I. p. 112, 
pi. 6, fig. 10. 
Shell subconic; body large; spire small, consisting of three 
smooth ventricose volutions, terminating in an obtuse apex ; 
body furnished witli three or four sharp spiral costa?; outer lip 
grooved internally. 
Found in the Kelloways Rock at Ilackness, South Cave. 
14. T. L/EViGATUS.—The Smooth Turbo, pi. XXXVIII. 
fig. 52. 
Turbo Uevigatus. Phillips, Geo. of Yorkshire, I. p. 129, pi* 
11, fig. 31. 
Shell subconic, smooth; body large; spire small, consisting 
of four abruptly tapering, inflated volutions, terminating in an 
acute apex; surface with very indistinct, longitudinal lines of 
growth. 
Found in the Blue Vick of the Inferior Oolite. 
15. T. undulatus. —The Waved Turbo, pi. XXXVIII. 
fig. 47. 
Turbo undulatus. Phillips, Geo. of Yorkshire, p. 134, pi. 
13, fig. 18. 
Shell subconic; body large; spire small, consisting of three 
or four rapidly diminishing, inflated volutions; whole shell 
covered with spiral, undulating, strong stria?, crossed by a few 
indistinct and broken lines of growth. 
Found in the Marlstone, Lias formation, Yorkshire. 
T 
