314 MELVILL AND STANDEN: SHELLS FROM LIFU. 
face is closely acutely ribbed, the transverse decussations some. 
what noticeable in the interstices, and these in some specimens 
give a crenulate appearance to the ribs themselves. ‘The base 
is spirally costulate, as are the upper whorls ; the mouth round, 
outer lip simple. No doubt this species is nearly allied to 
Minolia Holdsworthiana G. Nevill from Ceylon, and JZ. sénga- 
porensis Pilsbry, of which we have only seen figures; but it 
differs from both these species by several salient characters. 
We are of opinion this group comes nearer Solariel/a than 
Minolta ; perhaps it would be well to separate them generically 
as Conotrochus Pilsbry. (tpdynpa a delicacy). 
Cadulus viperidens sp. nov. (PI. XI, fig. 79). 
C. testa mediocri, subinflexa, perlevit, apud apicem sicut ad 
aperturam basalem paullum attenuata, delicata, pellucida, 
lactea, apertura rotunda, margine tenut, apertura posteriore 
perparva, margine labialiter acuté bifisso, tenut. ; 
Long., 6°50 mall. 
Diam., oris, 1 mill., sp. maj. 
CLS OO 3 
Several specimens of a somewhat incurved, perfectly 
smooth, translucent, milky-tinged Cadu/us, precisely corres- 
ponding with unnamed specimens in the British Museum from 
the shores of North Australia. In form it slightly recalls 
C. colubridens Wats. from New Zealand (‘Challenger’ Expedi- 
tion), but is more uniform in width and less ventricose towards 
the base. It is likewise smaller than either that species, the 
common tropical C. gadus Montagu, or C. /ef/reystt Montero- 
sato. The mouth is simple, round, the posterior or apical 
orifice, also round in diameter, has its edges labially bisected 
by a sharply-cut channel. The specific name chosen, ‘“‘viper- 
fanged,” is self-evident from the form. 
Tornatina Hadfieldi sp. noy. (Pl. XL, fig. 80). 
T. testa oblonga, levissima, recta, tenut, albo-lactea, anfractt- 
bus guatuor, ad suturas canaliculatis, ultimo anfractu 
oblongo, magno, sub lente spiraliter striolato, supra medium 
J.C., viii., Oct. 1896. 
