168 
a deeper purple tint, and are crossed by narrow axial white 
lines. The base is of a lighter tint, the outer 6 cinguli of a 
rose pink, minutely dotted with creamy white. The columella 
and umbilicus are white, bordered outside with green, which 
tints the inner two basal cinguli, and curls around the colu- 
mella into the throat. The inner edge of the outer lip is 
golden-brown and white, interior shining and nacreous. 
Operculum horny multispiral, nucleus central, a radial cellu- 
lar fringe-like film over the inner three-fourths of each spiral. 
Height, ir75 mm.; diameter, 9*75; aperture, 4. 
Radula, c/D .1.5. 1.5.1. CO. Central rachidian heart-shap- 
ed, narrow free end surmounted by small, slightly serrated 
denticle ; the other rachidians with trilobed cusps, which 
gradually enlarge outwards ; a single lateral with one cusp 
trilobed at its base ; marg;inals many unicuspidate, not ser- 
rated. 
Jiah. — Spencer Gulf, 20 fathoms : 32 alive and dead. 
Variations. — Some individuals are uniformly pinkish- 
brown, with white peripheral tubercles, and four pink cin- 
guli on each whorl articulated with white, the larger white 
spots lying vertically between the supra-sutural tubercles, 
while narrower, oblique white sjjots alternate in groups with 
them. 
Clanculus leucomphalus, -spec nor. Pi. xxxi , figs. 9, lo, ii. 
Shell depressed conic, rather thin. Protoconch one turn 
and a half smooth. Whorls 6, rapidly increasing, sloping 
convex. Penultimate with 8 close-set spiral rows of 
smooth ovate granules. Body-whorls with ten spiral 
rows of granules above the acutely angled peri- 
phery, the granules of the infra - sutural row 
are much larger and placed axially, the rest spi- 
rally ovate ; and ten rows on the base of flatter, more quad- 
rate, and more close-set granules. Oblique axial striae crowd 
between the granules on the spire, but are obsolete on the 
base. 
Aperture quadrate oblique : outer lip crenulate, toothed 
just within the margin opposite each spiral lira, within this 
thickened and wrinkled, and in the throat Urate and na- 
creous ; basal lip crenulate, thickened within with 5 teeth 
gradually enlarging towards the columella : columella oblique, 
nearly straight, ending below in a prominent, obliquely fur- 
rowed but not bifid tooth, with a large tubercle at the junc- 
tion of its upper and middle third, and with a flange through- 
out its whole length bent towards the umbilicus. The umbili- 
cus is wide and deep, with a funicle winding up its outer side 
to the tubercle on the columella. The umbilical border over- 
