y found in New Zealand, the Janthina
globosa, like the Janthina exigua in shape, but larger, and the grooving
being very faint the shell has a glistening appearance. This variety is
rare.

~CANTHARIDUS IRIS~ (Plate VII.).--Fig. 3, from Iris, a rainbow, well
describes the colour of this pretty little shell, seldom more than one
and a-half inches in length. Pink, purple, yellow, and red seem to be
the prevailing colours; and they are arranged in irregular waving lines
on its smooth and polished surface. The interior is highly iridescent.
It lives amongst seaweed and rocks below low water mark. The Maori name
is Mata-ngo-ngore, which is also used for the Calliostoma shells on
Plate VI.

~CANTHARIDUS TENEBROSUS, var. Huttoni~ (Plate VII.).--Fig. 7 is a little
bluish-black shell, about a-third of an inch long, with fine striae or
grooves running down the whorls. Alive, it is found in great numbers at
low water on marine grass banks in harbours, and seems to be very
active, as the anchors and cables of boats, moored for a few hours over
one of their favourite haunts, will be liberally sprinkled with them.

~CANTHARIDUS PURPURATUS~ (Plate VII.).--Fig. 8 is a heavier and rougher
shell than the Iris, and of a rose-pink colour. Sometimes the whole
shell is of this colour, but frequently only the top of the spire. It
also lives amongst seaweed and rocks; but when living on grassy banks in
harbours seems to lose its pink colour and become a pale grey.

~CANTHARIDUS FASCIATUS~ (Plate VII.).--Fig. 9 (lately known as Bankivia
varians) is found in Westland. White, green, rose, purple, or black in
colour and plain or banded, and sometimes even with longitudinal wavy
lines. It is about half an inch in length.

All of the Cantharidus family have beautiful nacreous interiors, and are
the favourite New Zealand shells for necklaces and bracelets. When
cleaned with acid, they are much admired. We have six or eight other
varieties of Cantharidus, but they are small, and are not figured on the
plate.

~TARON DUBIUS~ (Plate VII.).--Fig. 4 is a shell about three-quarters of an
inch long, and found under rocks in partly-sheltered harbours. The
exterior varies from chocolate to black. The interior varies between
purple and white. The lip end of the spire is usually reddish.

~LITORINA CINCTA~ (Plate VII.).--Fig. 5 is a semi-amphibious shellfish
common to both Islands. It is found amongst rocks in the open sea near
high water mark. The exter