TURBO. 
Prare VII. 
Species 27. (Mus. Saul.) 
TurBo cANALIcULATUS. Twurb. testd ovatd, imperforata, 
spird subelatd, anfractibus spiraliter sulcatis, superné 
declivibus, liris spiralibus depressiusculis, und centrali, 
in anfractu ultimo duabus, vel partem inferiorem versus 
tribus, prominentibus, omnibus oblique striatis ; aper- 
ture fauce sulcato, viridi vivide variegata et nebulatd, 
nigricante alboque hic illic marmoratd, intus argented. 
THE CHANNELLED TuRBo. Shell ovate, imperforated, 
spire somewhat raised, whorls spirally grooved, 
slanting round the upper part, spiral grooves rather 
depressed, one central, in the last whorl two, and 
towards the lower part three, more prominent than 
the rest, all obliquely striated, interior of the aperture 
grooved ; brightly variegated and clouded with green, | 
marbled here and there with black and white, interior 
silvered. 
GMELIN, Syst. Nat. p. 3594. 
Hab. ? 
An excellent species which requires careful observation 
on account of its rarity and peculiar resemblance to the 
equally rare Turbo crassus. Like that species the last whorl 
presents two ridges more prominently developed than the 
rest and distinguished by a very similar style of marking ; 
they will, however, be found to differ in their convexity and 
general character throughout. In the 7. canaliculatus the 
ridges are more elevated and obliquely striated across, the 
colouring is of another character, and the interior of 
T. crassus is not grooved, as in this species. 
For the specimen here figured I am indebted to the 
collection of Miss Saul. 
Species 28. (Mus. Cuming.) 
TurBo curysostoma. Turb. testd ovaté, imperforatd, 
anfractibus superne angulatis, undique spiraliter subti- 
liter costatis, costis interdum minutissimé et creberrime 
squamatis, squamis ad angulum et infra prominentioribus 
interdum peramplis ; lutescente, castaneo plus ininusve 
tinctaé et marmoratd, intus aureo-margaritacea., 
THE GOLDEN-MouTH TuRBO. Shell ovate, imperforated, 
whorls angulated round the upper part, spirally 
ribbed throughout, ribs sometimes very minutely and 
closely scaled, scales at the angle and beneath more 
prominent, sometimes very large; yellowish, more or 
less stained or marbled with chesnut brown, interior 
golden pearl. 
Linnzus, Syst. Nat. (12th edit.) p. 1237. 
Hab. Santa Cruz, Island of Luzon, Philippines; Cuming. 
There appear to be two very distinct varieties of this 
well-known and abundant species, one of larger size in 
which the spiral ribs are more prominent and all distinctly 
minutely scaled, whilst the larger scales upon the angle 
are in some measure obsolete. In the smaller variety this 
condition of the sculpture is reversed, the ribs being very 
small and only marked by fine ripples of laminze, whilst 
the scales on the angle are of a large tubercular structure. 
Species 29. (Mus. Cuming.) 
TurBO MaRGARITACEUS. Turd. testd ovatd, umbilicatd, 
anfractibus superné concavis, spiraliter costatis, costis 
rotundatis, distantibus, interstitiis profundé eacavatis, 
liré parva crenatd interveniente ; lutescente, castaneo 
maculata et variegatd, intus argented. 
Tue PEARLY TurBo. Shell ovate, umbilicated, whorls 
concave round the upper part, spirally ribbed, ribs 
rounded, distant, interstices deeply excavated, with a 
small beaded ridge intervening; yellowish, spotted 
and variegated with chesnut brown, interior silvered. 
Linnazus, Syst. Nat. (12th edit.) p. 1236. 
Hab. Eastern Seas. 
The ribs of this species are rather distant with the 
interstices between them characterized by the presence of 
a minute beaded ridge which becomes gradually obsolete 
towards the apex. 
Species 30. (Mus. Cuming.) 
TURBO sPARVERIUS. Turd. testd ovatd, imperforatd, sub- 
ventricosd ; anfractibus superne vix declivibus spiraliter 
lineari-sulcatis, costis intermediis plano-convexis, me- 
diano ceteris prominentiore ; fuscescente-albd, nigri- 
cante-fusco peculiariter tessellaté et maculata, intus 
argented. 
THE SPARROW-HAWK TurBo. Shell ovate, imperforated, 
slightly ventricose, whorls little slanting round the 
upper part, spirally lmear-grooved, intermediate ribs 
flatly convex, the middle one more prominent than 
the rest; brownish white, peculiarly tessellated and 
spotted with blackish brown, interior silvered. 
GMELIN, Syst. Nat. p. 3594. 
Hab. Isle of Luzon, Philippines; Cuming. 
This species which is one of very rare occurrence is 
somewhat intermediate in character between the 7’. setosus 
and crassus, though sufficiently distinguished from the 
former by the depression and closer proximity of the ribs. 
The most characteristic feature of the species is, perhaps, 
to be found in its very peculiar dull brown tone and style 
of colouring. 
February, 1848. 
