rw
116
Chemn. Conch, f . 1637-38.
F u s u s C O L U M B A R IU S .
Murex columbarius.
In h ab . Pacific Ocean.
T he young o f this species has three very obscure plaits on the pillar tha t are quite obliterated in tbe
ad u lt state. I t is one o f those species which appe a r to unite the F u s i with the Turbine lla.
F u s u s r a p h a n o i d e s .
Purpura fusiformis. Blainv. Ann. Mus. t. 1 1 . / . 7.
Shell ovate, fusiform, ventricose, white (covered with a brown p e rio stra cum ); spire conical, as long
as the m o u th ; whorls convex, transversely plaited, with a sub.posterior keel o f compressed tubercles,
and distant spiral ridges, those in the canal larger and further apa rt. Mouth o v a te ; canal slightly tw is ted ;
axis perforated ; outer lip rather veined. Length 2 inches,
inhab.
F u s u s s u l c a t u s .
Shell ovate, fusiform, ventricose, solid, white (covered with a thin brown periostracum), longitudinally
plaited, with close small rounded, alternately smaller, spiral ridges ; the spire conical, as long as the mouth ;
whorls rounded. Mouth o v a te ; outer lip cren u la ted ; throat deeply g rooved; inner lip smooth; front of
pillar with three very obscure oblique plaits ; canal short, straight, wide, open, slightly perforated. Axis
1 inch.
Inhab.
F u s u s g r a n d i s .
Shell fusiform, ventricose, solid, white, (covered with a brown periostracum ?) with close alternately
broad an d narrow low spiral rid g e s ; spire nearly as long as the m o u th ; whorls rounded, sub-angular, and
with a series of rounded tubercles b e h in d ; o ute r lip crenulated, internally thickened and g ro o v ed ; inner lip
sm o o th ; canal rather short, slightly twisted, open. Axis 5 inches.
Inhab.
The lower whorls are rather concave behind the tubercles, and the inner part of the throat is smooth.
F u s u s C A N A L IC U L A T U S .
Shell ovate, fusiform, solid, pale brown, varied and spotted with dark brown, closely and unequally
spirally g ro o v ed ; spire conical, two-thirds the length o f the m o u th ; whorls convex, concave, shelved, and
produced into a raised edge over the suture behind, u p p e r one transversely plaited. Mouth very y e llow ;
th ro a t smooth ; o ute r lip c renulated, th in ; inner lip rather c a llo u s ; concave, with four or five close oblique
plaits ill f ro n t; canal short, twisted, open. Axis 3^ inches.
In h ab . China.
F u s u s V iR G A .
Shell fusiform, elongate, solid, white, apex yellowish ; spire acute, two-thirds the length of the mouth ;
whorls rounded, convex, regularly and strongly longitudinally pla ited, with alternate broad, sharp edged
and very fine spiral r ib s ; suture distinct. Mouth ova te ; throat grooved; outer lip c ren u la ted ; canal
elongated, tapering, transversely striated, smooth in front. Length 5 inches.
Inhab. C h in a ; n ot uncommon.
Compare with Fusus laticostatus, Desh., b u t the ribs are n ot broad and depressed. The nucleus o f this
species, as in most of the genus, is quite smooth, sub-cylindrical, b lu n t, o f one whorl and a h a lf; the periostracum
thin, p a le brown, hairy.
F u s u s a n g u l a t u s .
Shell ovate, acute, smooth, ra th e r solid, brownish w h ite ; the spire elongated, rather longer than the
mouth and c a n a l; apex b lu n t; whorls convex, rounded, with five or six sub-equal narrow elevated spiral
ribs. The mouth small, roundish-ova te ; th e canal short, rather twisted, open. Length 2 j inches.
F u s u s S a b i n i . Gray, Append. P a r r y , Voy.
Inhab. North Sea. L ike F . Islundicus, b u t thinner, and whorls much more ventricose.
F u s u s V EN TR ICO SU S .
Shell ovate, fusiform, ventricose, thin, white, covered with a thin olive smooth periostracum, finely
spirally striated ; spire short, conical, b lu n t; whorls convex, last ventricose, ro u n d e d ; c anal rather lengthened,
slightly twisted. Length 2 inches. Resembles F usus Sabini in texture, b u t is much shorter, and
finer lined. I t is also very like F usus Islandicus, b u t th e spire is not so long as the mouth, and the shell is
much more ventricose and thinner.
Inhab.
F u s u s G LA C IA L IS .
Shell ovate, elongated, sub-fusiform, white, solid, closely spirally s tria te d ; spire elongated, longer than
the mouth ; whorls rounded, convex, with rather close transverse plaits, Mouth ovate ; canal ra the r elongated,
scarcely twisted ; inner lip slightly thickened. Length 4 inches.
Inhab. Arctic Ocean.
F u s u s FO RN ICA TU S .
Murex fornicatus. Gmel— List. t. 1067. / . 2— Martini, Conch, iv. / . 1205
— Wood, Cat. t. 27. f . 92.
In h ab . Icy Cape.
This species offers a very great variety of forms. H o s t o f the young shells have a strong sub.posterior
keel on each whorl, b ut as the shell grows this keel disappears, and its place is supplied b y more or less
elevated conical tubercles, which are a t first united hy a slight ridge, and then become quite f r e e ; and sometimes
the older whorls are quite smooth, with only a slight ridge in the place o f the keel in the younger
ones.
Secondly. Other young shells (or u p p e r whorls of old shells) have two slightly elevated spiral ribs in
the place of the keel, and the ridges generally become less marked as the shell increases in size.
Thirdly. Some young shells have two very distinct spiral central keels, the hinder one being generally
the largest, and sometimes tubercular, and the front o f the last whorl being covered by six or seven distinct
regular spiral ridges.
Fourthly. Sometimes the spire of the shell is very much elongated, and the whorls smooth, furnished
with compressed transverse tu b e rc le s; the last whorl is marked with two indistinct sub-central keels which
appe a r to define the length o f the tubercles.
Length 3 j inches ; spire 2 inches.
In all the varicliee the shell varies greatly in the length of the spire, and in the ventrioosenes, o f the last
whorls. They are all easily known from all the varieties o f j
and the shell browner and more horn-like i:
f F usus despectus, in the canal being more twisted,
F u s u s p a l l i DUS . t. 3 6 . / . 14.
Inhab. Pacific Ocean.
1 appearance.
Brod. Sow. Zool. Journ. iv. 378.