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MOLLUSCOUS ANIMALS. 
Fusus Magellanicus. 
Murex Magellanicus. Lam. 
In the young state this shell is only cancel'ately ribbed, being entirely destitute of the concentric elevated 
plates ; in this state it might be mistaken for another species. From this shell having become very common, 
it was easy to procure a long set of the species. 
FUSUS MURICIFORMIS. 
Bucc. muriciforme. King & Brod. Zool. Journ. v. 348. ? 
Shell ovate, fusiform, purplish white, pellucid ; spire conical, two-thirds the length of the mouth ; whorls 
convex, rounded, flattened near the suture, regularly spirally grooved, and concentrically waved. Mouth 
ovate, oblong ; canal short, wide ; throat smooth ; inner lip white. Axis 14, diam. 7, mouth 9 lines. 
Yar . B. subnodosa. Shell purple; the whorls with alternate narrow low, and wider convex spiral 
ridges, rising into white tubercles as they pass over the cross waves. Axis 13, diam. 6, mouth 7 lines. 
Inhab. Pacific Ocean. 
Allied to F. Magellanicus, especially in its young state. 
FUSUS LAMELLOSUS, t. 36./. 13. 
Shell ovate, fusiform, white, pellucid; spire conical and acute; whorls rounded, sub-angular behind, 
with numerous close, sharp, elevated, concentric laminae. Mouth ovate ; outer lip reflexed ; canal elongated, 
open, slightly recurved at the tip. 
Inhab. Icy Cape. 
Some of the laminal Murices, as the M. Magellanicus, &c., are better referred to Fusus. 
FUSUS MULTICOSTATUS. 
Murex multicostatus. Esch. Atlas, t. 9 ./. 4. 
Inhab. Northern Ocean. 
Fusus monoceros. Desk, in Diet. Class. H. Nat. ix. 374. (1826). — Blainv. 
Malac. 62, 3. 
Monoceros giganteum. Lesson. Voy, Cog. t. 11. f. 4. 
Monoceros fusioides. King fy Brod. Zool. Journ. v. 348. 
Inhab. Pacific Ocean. 
This shell has been referred to the genus Monoceros, because it has a tooth on the front of the outer lip ; 
but if this is to be regarded as the only character of the genus, several Murices as Murex tenuispina, Murex 
acanthopterus, Murex inflatus, and many other species of shells, such as Turbinella angulifera, Pyrula 
plumbea, Struthiolaria monoceros , &c., must be referred to it. Lamarck never intended that this should be 
the case, for he expressly speaks of the flatness of the pillar and the shortness of the canal. 
CONUS. 
Tentacles short, placed on the lower side of the base of a short large cylindrical cavity, in the base of 
which the real trunk is placed. The eyes near the top of the tentacles. Trunk conical, acute. Foot trun- 
cated in front, grooved all round its edge, making it double edged. Operculum linear, hrony, thick, annular. 
