256 
CONCHIFERA, 
Crania. 
N. minima. Brown, Tr. Man. Geo. Soc. I. p. 64, pi. G, figs. 
22, 23, 24. 
Ovate; body large; spire small, consisting of two depressed 
volutions; aperture semi-lunar ; surface smooth. 
In the Red Marl, Newtown, near Manchester. 
L. Globulus Smithii. —Smith’s Globulus, pi. XXXIII.* 
fig. 77. 
G. Smithii. Brown, Wem. Mem. VIII. [pi. 1, fig. 18. 
Ventricose, sub-globose, smooth, glossy; spire with three 
obtuse depressed volutions, separated by a deep groove ; aper¬ 
ture oblong-ovate, narrowed and pointed above ; pillar-lip 
broadly reflected on the columella. 
Found by the Duchess of Argyle, in the Pleistocene Marine 
Formation at Ardencaple. 
1. Bulla undulata.—T he Waved Bulla, pi. XXXIII.* fig. 
78. 
B. undulata. Bean, Mag. Nat. Hist. 1839, pi. 7, fig. 9. 
Oviform, ventricose; aperture expanded; surface smooth, 
with a few longitudinal, waved, shallow, irregular furrows. 
The Cornbrash, Scarborough. 
1. Pileopsis minuta. —The Minute Pileopsis, pi. XXI.* 
figs. 55, 56, 57. 
P. minuta. Brown, Tr. Man. Geo. Soc. I. p. 223, pi. 7, 
figs. 55, 56, 57. 
Shell smooth, glossy, conical, with the vertex slightly spiral 
and inflected; aperture sub-obvate, and expansive. Diameter 
about a line. 
In the Coal Shale, High-Green Wood, near Todmorden. 
In the Manchester Museum. 
1. Patella Greenwoodi.— Greenwood’s Patella, pi. XXL* 
figs. 58, 59. 
P. Greenwoodi. Brown, Tr. Man. Geo. Soc. p. 224, pi. 7, 
figs. 58, 59. 
Shell sub-ovate, conical, smooth, slightly wrinkled trans¬ 
versely, sub-depressed; the vertex inclined anteriorly. 
In the Limestone Shale, near Hebden Bridge. 
1. Euomphalus Corndensis. —The Comdon Euomphalus. 
pi. XXXIII.* fig. 58. 
E. Corndensis. Sowerby, Sil. Syst. p. 641, pi. 22, fig. 16. 
Discoidal, smooth, with three volutions; the keel with a 
series of nodules ; aperture transversely oval. Diameter two 
and a half lines. 
In Volcanic Grit, Lower Silurian Rocks, Leigh Hall, Corn- 
don Hills, Wales. 
2. Euomphalus tenuistriatus. —The Thin Striated Euom¬ 
phalus, pi. XXXIII.* fig. 53. 
E. tenuistriatus. Sowerby, Sil. Syst. p. G41, pi. 22, fig. 14. 
Discoidal, with three rapidly increasing volutions, crossed 
by very fine, thickly set, regular strire; aperture round, equal 
in diameter to half the width of the shell. Diameter four and 
a half lines. 
Lower Silurian Rocks, Middleton, Corndon Hills. 
1. Ceritiiitium giganteum. —The Gigantic Cerithium, pi. 
XXXVII. figs. 18 and 15, p. 66. 
CLASS CONCUIPERA. 
1. Crania antiquior. —The Ancient Crania, pi. LVI.* 
fig. 39. 
C. antiquior . Jelly. MSS. 
Orbicular, compressed, with the umbo large, extended, 
rounded at the termination, and quite straight. 
In the Great Oolite, Hampton Cliffs. 
2. Crania striata. —The Striated Crania, pi. LVI.* fig. 60. 
C. striata. Woodward, Geo. Nor. pi. 6, lig. 15. 
Nearly orbicular, the upper valve conical; with about fifteen 
strong divergent furrows, and smaller intervening ones; the 
intermediate ribs rounded, and producing a scolloped margin 
all round : the interior strongly marked. 
The Upper Chalk, Gravesend. 
3. Crania ovalis. —The Oval Crania, pi. LVI.* fig. 59. 
C. ovalis. Woodward, Geo. Nor. pi. 6, fig. 16. 
Oval; base somewhat wider than the apical end; centre of 
superior valve conical; the vertex a little curved ; surface with 
numerous strong divergent furrows and intermediate ribs : 
margin nearly plain. 
The Upper Chalk, Harford Bridge, Norfolk. 
