456 GEOLOGY OF THE 
Pillar-lip smooth, and not re- 
flected. Spire with 10 volu- 
tions; length 1} inch. 
6. monile. Brocchi, p. 432. t. 8, f. 15. 
TROCHUS. 
1. elegans. Gmelin’s Linné, p. 3581.—Schree- 
ter, Einl. i. p. 682.—Zorn Na- 
turf. vii. p. 167. t. 2.f D1. & 
D. 2. 
TURBO. 
1. clathratu- Montagu, Test. Br. p. 297.; and 
lus. oe p- 124.—Pennant’s Br. 
Zool. iv. p. 129. t. 81. #111. A. 
—Dillwyn’s Conch. p. 854. 
Linné, Syst. Nat. p. 123'7.—Do- 
novan, Br. Sh. 1. t. 28.—Dill- 
wyn’s Conch. p. 854. 
8. elegantissi- Dillwyn’s Conch. p. 856.—Do- 
mus. novan, Br. Sh. v. t. 179. f. 1. 
4, eonoideus. Brocchi, p. 660. t. 16. f. 2. 
5. aculeatus. Shell imperforate, turrited, with 
2. clathrus. 
Jutions seven; apex pointed. 
This shell is very like the T. 
clathrus, but may easily be dis- 
tinguished, from the ribs being 
crowned with spines. 
6. tenebrosus. Maton and Racket, in Linn. 
Trans. VIII. p. 160.—Mon- 
tagu, Test. Br. p. 303. Sup. 
t. 20. f. 4. 
HELIX. 
1. subulatus. Dillwyn’s Conch. p. 881.—Dono- 
van’s Br. Sh. V. t. 172. 
2. Haliotoi- Linné, Syst. Nat. p. 1250.—Lis- 
dea. ter’s Conch. t. 570. f. 21.—Dill- 
wyn’s Conch. p. 973. 
NERITA. 
1. Canrena. Linné, Syst. Nat. p. 1251.—Lis- 
ter’s Conch. t. 560. f. 4.—Dili- 
wyn’s Conch. p. 975. 
DENTALIUM. 
1. Entalis. Linneus, Syst. Nat. p. 1263.— 
Dillwyn’s Conch. p. 1065.-Do- 
novan, Br. Sh. p. 48.—Mon- 
Pl. X. f. 9. sub-contiguouswhirls, and thick tagu, Test. Br. p. 494. 
longitudinal distant ribs, crown- | .-coarctatum. Broechi, p. 264. t. 1. f. 4. 
ed with inflected spines. Vo- 
Il. 
Foss SHELLs found.in the Banks of Sand at La Trinité, and on the west side of the 
‘Plain of Nice. 
BIVALVE. 
MYA. 3 striata. Shell elliptical, with strong trans- 
1. inequival- Montagu’s Test. Br. p. 38. t. 26. | Pl. IX. f. 12. 
vis. f. '7—Dillwyn’s Conch. p. 55. 
—Maton and Racket in Linn. 
Trans. vil. p. 40. t. 2. f. 6. 
2. Trinitéa. Shell ovate, depressed, umbo a 
PL IX. f. 3. _ little turned to one side: pos- 
terior slope somewhat truncat- 
ed; with strong regular con- 
centric ridges, which terminate 
with a serrated appearance on 
the posterior slope. Hinge with 
one strong elevated tooth, which 
fits into a socket in the oppo- 
site valve, with a lateral tooth 
in the anterior slope, and a 
groove in the posterior ; length 
4ths of an inch, breadth 24 
eighths. 
verse striz: hinge with an ob- 
lique tooth and small socket. 
Posterior end somewhat round- 
ed; anterior end more pointed : 
inside smooth, with strong mus- 
cular impressions. Length 1 
eighth, breadth 23. 
4. undulata. Shell sub-rotund, beak sharp, and 
Pl. 1X. f. 13. much turned to one side: hinge 
with a deep groove, in which 
the cartilage is fixed: posterior 
slope somewhat pentane an~ 
gular. Inside with strong lon- 
gitudinal obsolete strie, which 
terminate about an eighth of an 
inch from the base: the mar- 
gin is smooth, with a strong 
transverse groove. Outside 
smooth, 
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