ARCHITECTONICA REEVI (architectonica, skilled 
in architecture; Reeve, the conchologist).—A rare spiral 
univalve about an inch in diameter, and five-eighths of an 
inch in height, flatly conical in shape, of flesh colour, and 
sculptured with a finely-beaded rib above and below the 
suture. There is also a pronounced rib round the angle 
at the base, with one accompanying it above and below. 
A narrow band of white round the suture is continued on 
the rib of the basal angle. Well-marked brown spots are 
arranged in bands just below the suture, and also above 
the angle of the base. The mouth is squarish in shape, the 
outer lip thin, and the columella straight and vertical. The 
base is flat and presents in the centre a widely-opened um- 
bilicus with a white-toothed border winding its way, like 
a staircase, up to the apex of the shell. The Architectonica 
is also known as a Solarium, or sundial, no doubt on ac- 
count of its geometrical outlines and the dark spots spaced 
off at regular intervals. Hitherto only recorded from 
Whangarei Heads, two dead shells have been found at 
Mount Maunganui (Miss Mirrielees), It has also been 
found on the Tasmanian and Australian coasts. 
EPITONIUM BUCKNILLI (epitonos, back stay of a 
mast; Bucknill, found by the writer).—This is quite a new 
species of shell, recently discovered at Mount Maunganut, 
resembling the other Epitoniidae in its general shape, mode 
of sculpture, and pure white polished surface. The angle 
of the spire is 30 degrees, which distinguishes it at a glance 
from the more slender E. Jukesianum, with its spire of 20 
degrees, which it most resembles superficially. Between 
the ribs it should be observed that there are minute stria- 
tions, which are to be made out only with the aid of a good 
lens. It is about two-thirds of an inch in length, and is 
found washed up with coarse pumice sand at high-water 
mark. The discovery of this species emphasizes the im- 
portance of carefully searching the sandy beach for shells 
from time to time. 
Since the above lines were written, several specimens 
have been collected from Whangaroa. (W. la Roche). 
EPITONIUM JUKESIANUM (epfitonos, the backstay 
of a mast; Jukes, the naturalist).—A small, delicate Wentle- 
trap shell, so called from the Dutch word wentletrap, mean- 
ing a staircase. Pure white in colour, it is about half an 
inch in length and an eighth of an inch in diameter at the 
widest part of the body whorl. It has about ten whorls, 
gradually diminishing in size to the sharply-pointed apex. 
The whorls are rounded and sculptured with fine plate- 
af 
Plate VII 
No. 19 
Plate VII 
No. 16 
Plate VII 
No. 13 
Sea Shells 
of New Zealand 
