436 
TuRBO SANDWICENSIS. 
Shell ovately turbinated, slightly perforated, somewhat tubulous, 
spirally ridged ; ridges smooth, alternately rather smaller, squamose ; 
scales most prominent on the last whorl, becoming obsolete near the 
base and on the upper whorls, interstices between the ridges finely 
imbricately laminated ; last whorl somewhat angulated at the upper 
part. Colour green, marbled and variegated with dark brownish red. 
CoiitoniA? CANDIDA. 
Shell minute, thin, perforate, orbicular, ornamented with raised 
spiral striz (margins of upper whorls granulose at the sutures?) ; 
inner lip callous ; aperture circular. 
CoLLONIA VARIABILIS. 
Shell small, thin, ovate, shining ; whorls three or four, convexly 
rounded, marked with very fine obliquely longitudinal striz ; inner 
lip callous, slightly expanded at the base ; indented at the umbilical 
region, and with a groove behind the immer lip ; aperture ovate. Co- 
lour white, variously painted with pink lines and blotches; the lines 
fine, oblique, extending over a portion of the whorls, sometimes 
flexuous and covering the whole surface ; blotches of a longitudinal 
shape ; the periphery of the last whorl usually ornamented with a 
row of pink spots. 
- ALCYNA RUBRA. 
Shell small, ovate, smooth, polished; whorls four, convexly 
rounded ; aperture ovate; indented at the umbilical region, and 
grooved ; columella with a prominent tooth near the base. Colour 
red, of different shades, or painted in a variety of patterns with blotches 
and spots of white and red, or marked with oblique longitudinal red 
lines. 
ALCYNA SUBANGULATA. 
Shell minute, rather solid, turbinate, ovate, ornamented with 
~ raised spiral strize ; whorls four, depressed somewhat in the centre ; 
outer lip thickened externally ; aperture circular ; columella ending 
in a prominent tooth. Colour deep red, with oblique light-red lines. 
CAssIS UMBILICATA. 
Shell ovately globose; spire somewhat acuminate, acute, uni- 
varicose ; whorls transversely ribbed, granulose towards the apex, ribs 
on last whorl strong, somewhat angular at their margins and slightly 
depressed, interstices deeply grooved ; outer lip reflected and much 
thickened, dentately ridged, middle and upper ridges superficially 
bisected, and interstices between the centre ridges nodulous; the 
upper half of inner lip ribbed, the transverse ribs of the last whorl 
extending over it regularly and passing within ; the ribs at the lower 
half of the inner lip (which are interrupted by a plait that extends 
over the columella) are close, much smaller, and somewhat wrinkled ; 
