185 
8. Psrupoxtiva Kewuuettriz, A. Adams. PP. testa ovata, solida, 
subperforata, epidermide fusco villoso tecta; spira prominula, 
anfractibus rotundatis, sutura canaliculata, anfractu ultimo trans- 
versim sulcato, sulcis postice evanidis, antice valde distinctis, 
unica profunda, in dente sulcato, ad labrum, terminata; apertura 
ovali, columella postice callosa, antice flexuosa, producta ; labro 
postice inflexo, antice sinuato-dentato. 
Hab. ? 
I am indebted for this species to Professor Edward Forbes, who, 
although himself describing the shells collected during the Voyage 
of the Herald and Pandora, insisted upon my describing this species 
when he heard I was preparing a monograph of the genus. 
5. Pyreuwa, Crist and Jans. 
PyRGULA CLATHRATA, A. Adams. P. testa turrita, acuminata, 
alba; anfractibus decem, planulatis, cingulis duabus transversis, 
costellisque elevatis, longitudinalibus, regulariter clathratis, sutura 
canaliculata ; anfractu ultimo angulato, cingulis transversis qua- 
tuor, basi concavo, cingula spirali circa regionem umbilicalem ; 
apertura subquadrata; columella recta, antice subtruncata, ro- 
tundata. 
Hab. Barclayon, Philippines, H.C. North-east Australia, Jukes. 
This is a beautiful species of a small group belonging to the Me- 
laniade, of which Melania helvetica, Desh. is the type. 
PINAXIA, 0. g. 
Shell conical ; spire short acute. Aperture ovate-oblong, emar- 
ginate anteriorly. Inner lip flattened, with several transverse plaits 
in the middle. Outer lip acute, grooved internally. 
Animal wnknown. 
Operculum 2 
1. Prnaxia cornonatTa, A. Adams. P. testa ovato-conica, auran- 
tiaca, albo variegata, cingulis transversis elevatis albo-articulatis, 
interstitiis longitudinaliter striatis ornata, anfractu ultimo plicis 
longitudinalibus instructo et postice nodoso-coronato. 
Hab. Philippines. (Mus. Cuming.) 
Mr. Cuming collected three specimens of this curious genus du- 
ring his researches among the Philippines; in form they resemble 
Imbricaria, in the flattened columella Purpura, and in the posses- 
sion of plaits T'urbinellus. 
Oniscta, Sowerby. 
1. Ontscra GRANDIS, A. Adams. 0. testa subtrigono-ovata, spira 
brevi, acuta, anfractibus convezis, albida, sparsim fusco variegata, 
costis transversis nodosis lineisque longitudinalibus regulariter 
cancellata, longitudinaliter plicata, plicis tenuibus, lamelliformi- 
bus, equidistantibus ; labio late expanso, granulato; labro valde 
reflexo, plicis dentiformibus, equalibus, equidistantibus, munito. 
Hab. China Seas. Mus. Cuming. 
