971 PROCEEDINGS OF THE MALACOLOGICAL SOCIETY. 
According to Pilsbry, the 7. pupillus, Gould, is undoubtedly a species 
from the west coast of North America, and belongs to the genus 
Margarita. | 
Shell conical, imperforate, shining, solid, of very variable colour 
and markings. Specimens from the North Island are cinereous or 
white, with broad red spots on the upper whorls and below the suture 
on the last whorl, the remainder being adorned with red spots; some- 
times the whole shell is pink, with broad oblique white bands running 
down the two last whorls to the periphery. The South Island 
specimens are much duller, the first three or four whorls are mottled 
with dark-grey and purple, whilst near the sutures white spots are 
found at regular intervals, 6-7 on a whorl, forming longitudinal bands 

Cantharidus pupillus, Hutton. 
on the second and third whorl. The last whorls are dark-purple or 
ereenish-brown, with longitudinal, narrow streaks of yellow or 
yellowish-grey. ‘lhe whorls, 5—6, are slightly convex, mostly a little 
shouldered, the last whorl angled at the periphery ; all the whorls are 
cingulate, the cinguli being broad and flat, and the interstices narrow, 
5-6 on the penultimate whorl, about 13 on the body-whorl, crossed by 
fine oblique striz of growth. Below the sutures and on the periphery 
of the last whorl two cinguli are usually fused together ; base convex ; 
sutures impressed. Aperture oblique, subrhomboidal ; outer lip thick, 
white inside, columella oblique, arched, slightly straightened in the 
middle, its reflection covering the umbilicus entirely, or leaving only 
a very narrow fissure. Alt. 8, diam. 7mm. 
Hab.—Heads of Manukau Harbour; Lyttelton; Banks’ Peninsula 
to Dunedin’ On seaweeds ; not common. 
Captain Hutton rightly remarks that this is a very variable shell. 
The character and number of the cinguli I found to be constant. 
North Island specimens especially are lovely shells; hardly two are 
alike in colour and pattern. 
21. CANTHARIDUS SANGUINEUS (Gray). 
Trochus (Gibbium) sanguineus, Gray: Dieffenbach’s ‘‘ New Zealand,” 
vol. 11 (1843), p. 238. 
Gibbula sanguinea (Gray): Hutton, Man. New Zealand Moll., p. 102. 
Cantharidus sanguineus (Gray): Hutton, Proc. Linn. Soc. New South 
Wales, vol. ix, p. 3862; Pilsbry, Man. Conch., ser. I, 
vol. x1, p. 131, pl. xlvii, figs. 92, 93. 
