THE MOLLUSCA—HEDLEY. 459 
MUuREX RADULA, Sp. nov. 
(Fig. 36). 
Shell small, fusiform. Colour cream, 
spines orange, columella pale lilac. 
Whorls seven. Sculpture—eight feeble 
varices alternating on each whorl. On 
the third and fourth whorls they are 
proportionately much stronger and are 
angled at the periphery. The body 
whorl has eleven spiral cords, narrower 
than their interstices; both are over- 
ridden by fine lamelle in the line of 
growth. At frequent intervals these 
cords produce small, short, tubular, 
orange spines, which lend a conspicuous 
and recognizable aspect to the shell. 
Apex of three whorls conical, smooth, 
and glossy. Aperture simple, lip sharp, 
canal broad and open. Length 9, 
breadth 4 mm. Fig. 36, 
A single specimen, taken at a depth of forty to eighty fathoms 
with the preceding. This specimen is perhaps immature, but differs 
so much from any with which I am acquainted as to be considered 
worthy of description. 
PURPURA HIPPOCASTANEUM, Lamarck. 
Tryon, loc. cit., p. 162, pl. xlv., figs. 36 — 43 ; pl. xlvi., fig. 45. 
Abundant on the outer reef of Funafuti. Tryon quotes this 
from the Paumotus, and Melvill and Standen from the Loyalty. 
In this Museum are instances from Queensland, Fiji, and the 
Solomons. Both Cooke* and Smith} condemn the treatment of 
the species in the reference quoted above, but, unfortunately for 
puzzled students, both think it “needless to discuss the matter at 
length.” 
The species seems to me to stand nearer Sistrwm than Purpura. 
The natives called this “ matapoto.” 
PURPURA ARMIGERA, Chemnitz. 
Tryon, loc. cit., p. 163, pl. xlvi., figs, 50, 51. 
Abundant on the outer reef of Funafuti, where its massive 
shell enables it to withstand the heaviest surf. In aged speci- 
mens the projecting points are worn down to the stump. 
* Cooke—Journ. Conch., v., 1888, >. 323. 
+ Smith—Proc. Zool. Soce., 1891, p. 408. 
