29 
CANTHARIDUS FASCIATUS (Plate V11.).—Fig. 9 (lately 
known as Bankivia varians) is found in Westland. White, green, 
rose, purple, or black in colour and plain or banded, and some- 
times even with longitudinal wavy lines. It is about half an inch 
in length. 
All of the Cantharidus family have beautiful nacreous in- 
teriors, 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 
exterior is brown, or bluish-black, with fine grooves or lines round 
it. The interior is violet, and the extreme length about ? inch. 
LITORINA MAURITIANA (Plate VII.).—Fig. 6 is a very 
common shell in the North Island, where it is found on rocks in 
the open sea, or in harbours up to, and even above, high water 
mark. The shell is under half an inch long, and usually not 
more than a quarter of an inch. The colour outside is bluish-white, 
with a broad spiral band of dark blue. The interior is violet. 
DAPHNELLA LYMNEIFORMIS (Plate VII.).—Fig. 10 is 
a very thin, whitish shell, with irregular brown markings, and 
is cften dredged up in the vicinity of Auckland. Its extreme 
jiength appears to be 1} inches. 
SURCULA NOVAE-ZELANDIAE (Plate VII.).—Figs. 11 
and 12 (late Drillia zelandica) is a pale rose-coloured shell, nearly 
14 inches in length. It belongs to the Pleurotoma family, any 
of which can easily be identified by the notch in the outer lip, 
as shown near the centre of the figure. All of this family live 
below low water mark, and are obtained by dredging. It is found 
in both Islands. 
