Fusus. 
MOLLUSCA. MURICIDiE. 35S 
1 3. F. carinella Rather elongated, with many longitudinal undulations, 
crossed by strong elevated unequal striae ; whorls convex, subcarinated in 
the middle, the last contracted towards the beak ; beak open, rather slender ; 
aperture obovate. — Sower. Min. Conch, t. clxxxvii. f. 3, 4. 
14. F. striaius Shell ventricose, with many transverse rounded projec- 
tions, and from three to five parallel striae between each, crossed by other 
striae or sutures ; whorls from three to six; beak nearly straight ; aperture 
oval Murex striatus. Sower. Min. Conch, t. xxii. A variety occurs in which 
three or four of the spiral ridges are more prominent than the rest, espe- 
cially the upper ones, t. cxix. — In Crag. 
15. F. contrarius Whorls reversed, five or six, slightly expanded at the 
upper part, and contracted towards the beak : surface with many rounded 
projections, or smooth ; aperture irregularly ovate ; beak rather short. — 
Murex con. Park. Org. Rem. t. vi. f. b.-.. Sower. Min. Conch, t. xxiii. — In 
Crag. 
16. F. rugosus. — Spire acute, of about six whorls, rather gibbose, with 
about ten longitudinal undulations, that intersect many deepish transverse 
strije; beak nearly straight, lip thick; canal rather broad — Murex rug. 
Park., Org. Rem. iii. p. 64. t. v. f. 16 — Sower. Min. Conch, t. xxxiv., upper 
figures, and t. cxix. f. 1, 2 — In Crag. 
17 . F. trilineatus — Shell elongated, with many transverse projecting nar- 
roAv bands, each obscurely divided into three threads ; whorls five or six ; 
beak straight, pointed ; aperture elongated, several folds within the outer 
lip. — Murex tril. Sower. Min. Conch, t. xxxv. f. 4, 5 . — London Clay. 
18. F. latus — Shell slightly ventricose, smooth, covered with alternately 
large and small transverse linear projections ; whorls five, upper part of each 
undulated ; aperture strongly striated within ; beak straight, expanded, 
truncated. — Murex latus, Sower. Min. Conch, t. xxxv. left hand lower figure. 
— Plastic Clay., Plumstead. 
19. F. costellifer — Subturrited, transversely striated, longitudinally cos- 
tated ; whorls rather ventricose ; aperture ovate, expanded towards the beak ; 
beak very short, spreading ; costae numerous, slender — Murex cost. Sower. 
Min. Conch, t. cxix. f. 3. — In Crag. 
20. F. ecMnatus . — Turrited ; whorls round, reticulated, with acute tubercles 
upon the angles of the meshes ; outer-lip striated within, beak short — Mu- 
rex ech. Sov)er. Min. Conch, t. cxix. f. 4 — In Crag. 
21. F. curtus — Ovate, pointed, subventricose, longitudinally ribbed, trans- 
versely striated ; aperture oval ; beak short, recurved ; whorls internally 
striated with elevated lines. — Murex curt. Sower. Min. Conch, t. cxix. f. 5. — 
London Clay. 
22. F. -Ventricose, longitudinally ribbed, transversely striated ; 
spire short, acute ; costae varicose above ; aperture oval, with a short ex- 
panded beak.— Murex grad. Sower. Min. Conch, t. cxix. f. 6 Plastic Clay., 
Plumstead. 
23. F. interruptus — Subturrited ; body covered by broad transverse sulci ; 
the remaining whorls smooth, with two sulci along their upper edges Murex 
int. Pilkington., Linn. Trans, vii. 11 7- t. xi. i.b.~ Sower. Min. Conch, t. ccciv. 
— London Clay. 
24. F. quadratm.~^h.o\% conical, transversely striated and obscurely bica- 
rinated ; base produced ; beak short ; aperture subrhomboidal. — Murex 
quad. Sower. Min. Conch, t. ccccx. f i. — Green Sand. 
VOL. I. 
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