ii ■:
.'ill!
Ill : (! L
108 MOLLUSCOUS ANIMALS.
S T R U T H IO L A R IA .
The tentacles are subulate on each side of the base of the thick elongated conical tru n k ; the eyes are
placed on short pedicles ne a r the oute r base o f the ten ta c le s; the foot short, peduncled, n ot folded. The
gills are formed of very fine thread-like fib re s; there is a groove and a slight tubercle on the side of tbe
right tentacles ; the o perculum is very small, horny, ovate lanceolate, with an elongated conical tip in front.
The animal is very like the animal of A p o r rh a is iu form and character, and justifies the position which
I had long ago proposed for the shell, next to R o s te lla r ia , before I knew the animal.
S T R U T H IO L A R IA M ICRO SCO P ICA . W. S.
Shell ovate, conical, whitish, with a narrow brown central b a n d ; whorls rounded, with two very ind
istinc t keels ; suture crenulated ; the outer lip margined externally, with two large teeth on the outer edge,
one in the middle, and the o the r in front ne a r the siphon.
In h ab . In d ian Ocean. Pa ris Museum.
PH O S , M o n t f o r t .
The tentacles are high up, very long and slender, placed close together a t the ir b a s e ; with the eyes
pla c ed near their tips, which are rather slender beyond th em ; the foot is peduncled, expanded ; the penis
is very long, slender, su b u la te ; the respiratory siphon is elongated ; the operculum is small, ovate, horny.
The shells of this genus have been confounded with N a ssa and Cancellaria, b u t they differ from both
in having a sinus in the front o f the outer lip , like the Strombida, and in the front o f the p illa r having a single
sh a rp marginal pla it.
The species are numerous ; I have a t least ten in ray possession. The genus Cyllene chiefly differs from
this in having a groove extending u p the suture like Oliva.
M U R E X .
T h e tentacles cylindrical, with th e eyes placed within one-third of the top, and the tip above the eyes
very thin and slender. {M. Pomum.)
M u r e x v i t u l i n u s , t. 3 3 . / . 4. 6 . Lam. E . M. 3 1 9 . / . 1.
Murex militaris. Gmel. 35, 36.
Murex purpura scabra. C h em.f. 1832-33.
Murex salebrosus. K ing, Zool. Jour. v ./). 347.
The specimens b ro u g h t by this expedition are larger than those formerly in the collections; they do not
differ in any character of importance, and certainly can only be regarded as a local variety.
M u r e x b r a s s i c a , t. 3 3 ./ . 1. Lam. H ist. vii. 167.
Murex ducalis. Brod. und Soto. Zool. Jour. iv. 377.
In h ab . Pacific Ocean.
I have compared this shell with Lamarck’s own specimen, in the collection o f the Prince Massena, and
it agrees with th e one here figured in every particula r ; tha t it is the shell he described is proved by its having
the name written on it b y Lamarck himself.