spiral univalve of a greenish white, or greyish white, the 
top of the spire being rose pink or pinkish green, with a few 
oblique longitudinal paler pink streaks.. It is sculptured 
with four or five flattened and rounded spiral ribs on the 
whorls, which are not only finely striated, but also crossed 
by closely-set growth lines. The interior is iridescent. 
Found on seaweed, or on the under sides of boulders in 
sheltered places below low-water mark. Dead and beach- 
worn shells are invariably of a brilliant rose-pink colour, 
as are also those live ones washed ashore from the neigh- 
bourhood of pumice rocks on ocean beaches remote from 
the outlet of rivers. 
From Ngunguru Harbour in the North to Banks Penin- 
sula; Makatu; Mount Maunganui. 
CANTHARIDUS RUFOZONA (kantharis, an irides- 
cent beetle; rufozona, with red ribs or belts).—This pretty 
little spiral shell is very similar to the C. tenebrosus var. 
Huttoni, but, instead of being bluish or purplish black, it 
is of a white or pale fawn colour, with the spiral riblets 
crimson, reddish or pinkish brown, and polished. The 
interior is pearly and iridescent. It is about a quarter of 
an inch in height. Although I have collected the other five 
Mount Maunganui species living in the natural haunts, 
the C. rufozona has been found almost invariably in the 
empty or dead condition, washed ashore after a rough sea. 
Spirits Bay; Hauraki Gulf; Mount Maunganui; Lyall 
Bay. 
CANTHARIDUS SANGUINEUS (kantharis, an iri- 
descent beetle; sanguis, blood)—A small spiral univalve 
of a greenish-white colour with blood-red spots; in clean 
specimens a glowing red, as in a fiery opal, and with white 
spots just below the suture. It is sculptured with cinguli, 
or belts, spirally arranged, separated by narrow grooves. 
There are from ten to fourteen on the body whorl, five of 
which are on the base. The aperture is fairly round, as 
in other members of the genus, and the interior is highly 
iridescent. The outer lip is somewhat thick and rounded, 
and edged with a narrow band of reddish brown, or what- 
ever the prevailing colour of the body whorl may happen 
to be. It is about three-eighths of an inch in height, and 
is not common. Found on seaweed in rocky pools near 
low-water mark. : 
East coast of the North Island to Cook Strait. Mount 
Maunganui; the Chatham Islands. 
CANTHARIDUS TENEBROSUS var. HUTTONI 
(kantharis, an iridescent beetle; tenebrosus, dark, gloomy ; 
29 
Plate VII 
No. 5 
Plate VII 
No. 7 
Plate VII 
No. 1 
Sea Shells. 
of New Zealand 
