138 
This is a beautiful pure-white species, with the interior of the aper- 
ture of a pale violet, and with the entire surface covered with trans- 
verse rows of small acute scales, resembling the points of a rasp. 
36. Rapana (Latiaxis) RHOposTomaA, A. Adams. (Pl. XXVIII. 
fig. 1.) RR. testa fusiformi-turrita, umbilicata, spira acuminata, 
rutila, albo-fasciata, anfractibus convexiusculis, longitudinaliter 
plicatis, transversim liratis, liris squamulis asperulatis, suturis 
canaliculatis, anfractu ultimo antice coarctato, regione umbilicali 
carina spirali circumeincta ; apertura ovali, intus carnicolore, 
canali producta, recurvata. 
Hab. China. Mus. Cuming. 
A handsomely coloured species, with a delicate pink aperture and 
channelled suture, partaking somewhat of the characters of Rhizo- 
chilus. 
37. Pisania Hermannsenl, A. Adams. (Pl. XXVIII. fig. 7.) 
P. testa oblongo-fusiformi, levi, fulvicante, obscure albo-punc- 
tata, anfractibus septem tumidiusculis, ultimo antice transversim 
sulcato ; apertura quadrato-ovali, columella postice lamina callosa 
instructa, labro expanso, antice dilatato, intus lirato. 
Hab. China. Mus. Cuming. 
A fine mitriform species, of a fulvous colour, with the outer lip 
rather expanded, and sulcated interiorly. We have named it after 
M. Hermannsen, who has contributed so materially towards the 
natural history of the Mollusca, by his valuable work on Biblio- 
graphy and Synonyms. 
38. PIsANIA CRENILABRUM. A. Adams. P. testa fusiformi, spira 
exserta, brunnea, fascia lata spadiceo obscure articulata, anfrac- 
tibus septem, supremis longitudinaliter plicatis, ultimo transversim 
lirato ; apertura ovali, breviuscula, labio callo nitido obtecto, 
labro extus subincrassato, margine crenulato. 
Hab. West Indies. Mus. Cuming. 
The spire in this species is longer than the aperture, the whorls 
are crossed with sharp elevated lines, and the margin of the outer lip 
is regularly crenulated. 
39. Pisanta RETICULATA, A. Adams. P. testa fusiformi-oblonga, 
fulvescente, rufo fuscoque lineata aut variegatu, anfractibus sep- 
tem, tumidiusculis, liris longitudinalibus et transversis undique 
creberrime reticulatis ; apertura ovali, labio postice viz callosa, 
labro extus incrassato, intus lirato. 
Hab. New Caledonia. Mus. Cuming. 
An elegant reticulated form, having very much the appearance of 
a Metula, but partaking chiefly of the peculiarities of Pisania. 
