350 
MOLLUSCA. MURICIDiE. 
Fusus. 
336. F. septangular IS , — Whorls seven, strong, with seven 
continuous obtuse longitudinal ridges, the intervening spaces 
broad, shallow, and smooth. 
Murex sept. Mont. Test. Brit. 268. t. ix. £ 5. Don. Brit. Shells, 
t. clxxix. f. 4 — In deep water, rare. 
Length fths of an inch, breadth fths ; glossy purplish-brown ; whorls ta- 
pering, nearly even, the ridges scarcely interrupted by the separating line ; 
aperture oblong-oval, ending in a short canal, outer lip sharp at the edge. 
337. F. attenuatus. — Whorls eight, smooth, nearly flat, with 
nine strong equidistant ribs. 
Murex att. Mont. Test. Brit. 266. Turt. Conch, Diet. 91.— English 
and Irish coasts, rare. 
Length | an inch, breadth about |th ; yellowish- white ; slender, tapering 
to a fine point ; ribs undulated as they rise in the middle of each volution ; 
aperture narrow, contracting a little at the canal, outer lip thickened at the 
back. 
338. F. nebula. — Whorls eight, strongly ribbed longitudi- , 
nally, finely striated transversely ; canal slightly bent to the left. 
Murex neb. Mont. Test. Brit. 267. t. xv. f. 6.— In sandy bays, not un- 
common. 
Length about half an inch, breadth /gths ; yellowish-white or rufous ; ribs 
nearly continuous across the thread-like separating line ; aperture narrow 
oblong-ovate, outer lip sharp. 
339. F. rufus. — Whorls six, longitudinal ; ribs sixteen, spi- 
rally striated ; canal short and straight. 
Murex rufus, Mont. Test. Brit. 263. — In deep water, rare. 
Length x®otfis of an inch, breadth |th ; colour brown ; whorls slightly 
rounded ; aperture ovate, outer lip thin, inner lip broad and smooth. 
340. F. minimus. — Whorls five, longitudinal; ribs ten, strong- 
ly striated spirally ; canal short, outer lip striated internally. 
Buccinum minimum, Mont. Test. Brit. 247. t. viii. f. 2.— B. brunneum. 
Dm. Brit. Shells, t. clxxix. f. 2. — In deep water, rare. 
Length x%ths of an inch, breadth about doth; brown; whorls slightly 
rounded ; aperture oval ; canal straight, and very short. 
341. F. linearis. — Whorls seven, .strong ribbed, with elevat- 
ed spiral striae ; outer lip crenated internally. 
Murex lin. Mmt. Test. Brit. 261. t. ix. f. 4.— M. elegans, Don. Brit. 
Shells, t. clxxix. f. 3 — In sandy bays, rare. 
Length fths, breadth |th ; brown, streaked with purple; whorls rugose, 
rounded ; apex pointed ; ribs about ten in number ; aperture oval, terminat- 
ing in a straight canal ; outer lip thickened externally. 
342. F. accinctus. — ^Whorls seven, ribs bent in the middle, 
finely striated spirally. 
Murex acc. Mont. Test. Brit. Sup. 114. Laskey. Wern. Mem. i. 402. 
t. viii. 14. — In deep water in the Frith of Forth, where only one spe- 
cimen occurred to Mr Laskey. 
2 
