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, 11°75 mm.; diameter, 9°75; aperture, 4. 
Radula, (2 .1.5.1.5.1.00. Central rachidian Hird tea 
ed, narrow free end surmounted by small, slightly serratec 
denticle; the other rachidians with trilobed cusps, which 
gradually enlarge outwards; a single lateral with one cusp 
ae ey at its base; marginals many unicuspidate, not ser- 
rated. 
/ab.—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, 
mui narrower, oblique white spots alternate in graups with 
them. 
Clanculus leucomphalus, spec. nov. Pl. xxxi, figs. 9, 10, 11. 
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 strie crowd 
ve ecn the granules on the spire, but are obsolete on the 
ase. 
Aperture quadrate oblique; outer lip crenulate, toothed 
just within the margin opposite each spiral lira, within this 
thickened and wrinkled, and in the throat lirate 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- 
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