MOLLUSCA. 
Fusus. 
OKO 
consisting of three well defined and rapidly diminishing volu¬ 
tions. Length three-eightlis of an inch, diameter three-six¬ 
teenths of an inch. 
In the Coal Shale, High-Green Wood, near Todmorden. 
5. Buccinum Naticoideum. —The Natica-hke Buccinum, pi. 
XXXIII.* fig. 1. 
B. Naticoide. Sowerby, Geo. Tr. 2nd Ser. IV. p. 347, pi. 
23, fig. 4. 
Ovate, smooth, and thick; spire produced, consisting of 
four or five volutions, with their upper edges rounded; body 
very large and ventricose; aperture two-thirds the length of 
the shell. 
The Portland Stone, Whitchurch, Swindon, Brill, and Vale 
of Wardour. 
0. Buccinum angulatum. —The Angulated Buccinum, pi. 
XXXIII.* fig. 74.* 
B. angulatum. Sowerby, Geo. Tr. 2nd. Ser. IV. p. 347, 
pi. 23, fig. 5. 
Somewhat fusiform, short; spire with obliquely straight 
sides; body with a transverse central keel; aperture rhomboidal, 
with a short rounded beak. 
The Portland Stone, Swindon and Quaniton. 
7. Buccinum striatum. —The Striated Buccinum, plate 
XXXIII.* fig. 74. 
B. striatum. Brown, Wernerian Mem. VIII. pi. 1, fig. 9. 
Sowerby, Bee. of Gen. Sec. I. p. 134. 
“Volutions longitudinally undulated, transversely striated, 
and but slightly convex ; the longitudinal ribs rather straight. 
“ If the Buccinum undatum be examined with a microscope, 
it will be found that the transverse ridges are elevated, broad, 
and distant, and there is between each of these ridges, in the 
upper whorls, a narrow and less elevated ridge, and in the 
lower or newer part of the shell generally about three. Now, 
in B. striatum , the ridges are so flat, that the shell may more 
properly be said to be spirally striated than covered with 
transverse ridges. The whorls in the new shell are also much 
lllatter than in B. undatum , and the longitudinal undulations, 
which in that shell are considerably concave towards the mouth 
of the shell, are here almost quite straight.”— G. Sowerby. 
1. Nassa lineata. —The Lineated Nassa, pi. XXXVII.* 
fig. 27. 
N. lineata. Sowerby, Geo. Tr. 2nd Ser. IV. p. 344, pi. 18, 
fig. 25. 
Ovate, body considerably longer than the spire, and inflated; 
wide at the base, and the whole surface transversely striated; 
volutions a little flattened, the upper edges sharp ; aperture 
somewhat longer than the spire. 
The Greensand, Blackdowu. 
2. Nassa costellata. —The Small-Ribbed Nassa, plate 
XXXVII.* fig. 28. 
N. costellata. Sowerby, Geo. Tr. 2nd. Ser. IV. p. 344, pi. 
18, fig. 20. 
Subulate; spire longer than the body; with about seven 
ventricose volutions, each provided with a varix; whole covered 
with longitudinal ribs and transverse striae; aperture nearly 
circular, with a thickened lip. 
The Greensand, Blackdowu. 
1. Pyrula Fittoni.—F itton’s Pyrula, pi. XXXIII.* figs. 
32, 33. 
P. Smithii. Sowerby, Geo. Tr. 2nd Series, IV. p. 330, pi. 
11, fig. 15. 
Oval short; body large; spire small, consisting of two 
or three volutions, with two spiral keels in the young state, 
which become obsolete in the adult; numerous fine transverse 
striae cover its surface, and obscure longitudinal ribs ; aperture 
expanded. 
The Gualt, Cape Point, uear Folkstone. 
2. Pyrula depressa. —The Depressed Pyrula, pi. XXXIII.* 
fig. 43. 
P. depressa. Sowerby, Geo. Tr. 2nd Series, IV. p. 344, pi. 
18, fig. 20. 
Pyriform ; spire depressed, completely sunk beneath the top 
of the body volution; body ventricose; base much narrowed; 
surface with many transverse narrow ribs, which project beyond 
the margin of the outer lip. 
The Greensand, Blackdowu. 
3. Pyrula Brightii. —Bright’s Pyrula, pi. XXXIII.* figs. 
44, 45. 
P. Briglitii. Sowerby, Geo. Tr. 2nd Series, IV. p. 344, pi. 
18, fig, 21. 
Pyriform, ventricose; spire about a third the length of the 
shell, consisting of about four volutions, the upper one small 
and acute; transversely bicarinated, and with many narrow 
spiral ribs ; aperture wide, longitudinally, semi-circular, narrow 
both above and below. 
The Greensand, Blackdowu. 
1. Fusus multi costatus. —The Many-ribbed Fusus, pi. 
XXXVII.* fig. 3, 4, 
Fusiform; spire occupying about a third of the shell, con¬ 
sisting of three or four rather broad volutions, which, as well as 
the body, are obliquely flattened above and straight" on the 
sides; defined above and below with a smooth regular rib; body 
with from ten to fourteen smooth ribs; the outer castal spoels 
being striated spirally and longitudinally; aperture wide above 
and narowed beneath ; pillar-lip a little reflected. 
Found in Dudley Limestone, at Dudley, Staffordshire. 
