GhYPILEA. 
CONCHIFERA. 
149 
form, but always longer than wide ; binge -pit narrow and much 
curved. 
Portland Sand, Dinton, Buckinghamshire. The Kimmeridge 
Clay, Aylesbury, aud Oxford Clay, Dorsetshire. 
10. Gryphjea minuta. —The Minute Gryphsca, pi. LXI. 
figs. 10, 11, 12. 
G. minuta. Sowerby, YI. p. 90, pi. 547, fig. 4. 
Orbicular; shell thin; gibbose; beak spiral; the lobo ob¬ 
scure ; much compressed. 
Great Oolite, Ancliff, Wiltshire. 
11. Grypilea obliquata. — The Oblique Gryphsca, 
pi. LXI. figs. 16, 17. 
G. obliquata . Sowerby, II. p. 24, pi. 112, fig. 3, Goldfuss, 
pi. 85, fig. 2. 
Obliquely oblong-ovate; a little involute ; an obscure lobe on 
the right side ; smaller valve irregularly ovate, and externally 
concave; beak pointing to the right side. 
Lias, Gloucestershire. 
12. Grypilea sinuata.— The Bent Gryphma, pi. LX. 
fig. 5. 
G. sinuata . Sowerby, IV. p. 43, pi. 33G, Phillips, I. p. 94, 
pi. 2, fig. 23. 
Obliquely ovate; larger valve very concave, much bent, 
with one side completely flattened, towards which tho umbo 
is inclined, curved, and very small; lesser valve quite flat and 
triangular ; surface rather smooth, with numerous equidistant 
lines of growth ; hinge-pit marginal, long, narrow, and curved. 
Lower Greensaud, Kent and Sussex ; Spceton Clay, Spec- 
ton, Yorkshire. 
13. Grypilea vesiculosa. — The Bladder Gryphma, 
pi. LXI. figs. 8, 9. 
G. vesiculosa. Soworby, IV. p. 93, pi. 369. 
Sub-rhomboidal, oblong, deep ; lesser valve concave, small, 
and curved ; composed of various distant laminm; beaks point¬ 
ed, and tho hinge small; width and depth nearly equal; lobo 
distinct, but not sharply dofined ; surface smooth. 
Chalk at Lyme Regis. 
14. Grypilea Puillipsii. —Phillips’ Gryphma, pi. LXI. 
figs. 13, 14. 
Gryphwa - ? Phillips, Geo. York, I. pi. 9, fig. 26. 
Longitudinal, incurved ; beaks rather large ; and both valves 
inflated. 
Upper Lias Shale, Yorkshire. 
15. Grypilea haliotoidea.— The Ilaliotis-formedGryphma, 
pi. LX. figs. 6, 7, 8, 9. 
Exogyra Haliotoidea . Goldfuss, pi. 88, fig. 1. Chama 
Ilaliotoidea. Sowerby, I. p. 67, pi. 25, fig. 2. 
Oval, compressed ; one valve deeper than the other, and 
provided internally with a deep curved groove, extending from 
below the beak on one side ; the other parts of the valve very 
shallow; margin thin, broad, and slightly fringed externally, 
and crenated internally, with a large muscular impression; 
surface transversely wrinkled ; beaks slightly involute ; nearly 
the whole surface of the under valve attached ; length about 
1J inch. 
Upper Greensand, Warminster and Blackdown. 
16. Grypilea recurvata. —The Recurved Gryphma, 
pi. LX. fig. 4. 
Chama recurvata. Sowerby, I. p. 69, pi. 26, fig. 2. 
Sub-rotund ; one valve very convex and conical, with its 
apex curved, the other shallow and lid-shaped ; beak sub¬ 
involute, hinge indistinct, and the surface smooth. 
The Upper Greensand, Halldown, near Exeter. 
17. Grypilea conic a. —The Conical Gryphcea, pi. LX. 
figs. 3, 11, 12, 13. 
Chama conica. Sowerby, I. p. 69, pi. 26, fig. 3, and pi. 605, 
figs. 1, 2, 3. 
Oblong, curved; the convex and larger valve considerably 
longer than the other, with a conical obtuse beak, and a small 
wing-like process; lesser valve oval, flat, with the margin and 
wing cronated ; binge formed like a ball and socket. 
The Upper Chalk, Charlton; tho Under Greensand, Dor¬ 
setshire and Wiltshire; the Gault, Hytlie and Cambridge¬ 
shire ; and the Greensand, Dorset and Devonshires. 
18. Grypilea plicata. —The Plaited Grypluca, pi. LXI.* 
fi gs. 26, 27, 28. 
G. plicata. Goldfuss, pi. 87, fig. 5. 
Oblong-ovate, much arcuated; beaks much incurved, sur¬ 
face very rugged, with transverse and longitudinal, irregular, 
strong, waved, striated ridges and furrows ; margins scolloped, 
inside deep, with a very large, well-defined muscular impres¬ 
sions under the beak. 
In the Chalk, Sussex. 
19. Grypilea digitata. —The Fingered Gryphcca, pi. LX. 
% ic. 
Chaina digitata. Sowerby. II. p. 165, pi. 174. 
Obliquely elongated, curved, aud gibbose ; with five or six 
marginal, elongated, canaliculated, finger-like processes ; sur¬ 
face smooth ; deeper valve with several ridges. 
The Greensand, Lyme Regis. 
20. Grypilea laevigata. —The Smooth Gryphma, pi. LX. 
fig. 17 ; 
Exogyra Iwvigata. Sowerby, VI. p. 220, pi. 605, fig. 4. 
Slightly elongated, curved, and smooth ; deeper valve some¬ 
what inflated, and obtusely carinated near the hollow side; 
flat valve semicircular, with a small pointed beak. 
The Upper Greensand, Worbarrow Bay, and the Lower 
Greensand, Sandgato and Berehcad. 
21. Grypiijea undata. —The Waved Grypluca, pi. LX. 
figs. 14,15. 
Exogyra undata. Sowerby, VI. p. 220, pi. 605, figs. 5,6, 7- 
Elongated, convex ; deeper valve carinated along the centre; 
with a series of branching ribs, that diverge from the keel; 
flat valve smooth and plain. 
Upper Greensand, Western Lines, Isle of Wight, and 
Blackdown. 
2 2. Gry pile a bulla . —The V esicularGry pha?a,pl. LX VI." * 
fig. 22. 
Exogyra bulla. Sowerby, Geo. Trans. 2d. Ser. IV. p. 346, 
pi. 22, fig. 1. 
Oblong, convex; beaks short, and laterally curved ; sur¬ 
face nearly smooth; form in general extremely variable. 
The Purbeck, Durlestone, Dorsetshire. 
23. Grypilea canaliculata. —The Canaled Gryphaui, 
pi. LXI. fig. 18. 
Chama canaliculata. Sowerby, I. p. 68, pi. 26, fig 1. 
Oblong-oval, rather depressed, transversely and concentri¬ 
cally furrowed ; deeper valve with a wing-shaped, lateral, 
