254 MR. G. B. SOWERBY ON NEW SHELLS. * (Apr. 28, 
apertura alba, castaneo picta, postice acuminata, antice lata, trun- 
cata; labio supra medium subacute emarginato. 
Hab. Agulhas Bank, 8S. Africa. 
Mus. Taylor. 
YLAVATULA GRACILIOR. 
(:. testa elongata, pyramidata, crassa, sub epidermide fulva, prope su- 
turam albo fasciata ; spira pyramidata, attenuata; anfractibus 12, 
leviter angulatis, ad suturam tumidiusculis, posticis 6, ad angu- 
lum oblique tuberculatis, anticis oblique undulatis ; apertura brevi, 
antice et postice alba, medio fulva, termino obtuso, sinu labit po- 
stico profundo, subquadrato. 
Hab. ? 
Mus. Taylor. 
The spire in this species is more elongated than in the preceding, 
and it has no tumid part anterior to the obtuse and not very promi- 
nent angle. Also it has no convexity in the spire. From Cl. tacus 
it differs in the much greater elongation of the spire, and also in 
not having the tumid varix at the top of each whorl which charac- 
terizes that species. 

DEFRANCIA SECTA. 
D. testa albida, fusiformi, acute cancellata ; apertura ovata, canali 
subelongato ; labio ad suturam sinu angusto elongato secto. 
Tab. China. 
Mus. Taylor. 
MANGELIA CLAVATA. 
M. testa elongate fusiformi, pallida, supra et infra fulvo fasciata ; 
spira elongata, acuminata ; anfractibus angulatis longitudinaliter 
costatis, spiraliter striatis ; apertura clavata ; labio externo post 
marginem valide unicostato, canali caudali elongato. 
Hab. China Seas. 
Mus. Taylor. 
In general appearance resembling Mangelia gracilis of our seas, 
but more elegantly fusiform, with longer and more tapering canal. 
METULA TRIFASCIATA. 
M. testa angusta, mitriformi, minute cancellata, pallidissime fulva, 
fusco pallido trifasciata ; apertura spiram longitudine equante ; 
iabio minute crenulato. 
Hab. Bay of Bengal. 
Mus. Leckenby. 
MARGINELLA OBTUSA. 
M. testa ovato-oblonga, grisea, longitudinaliter inconspicue strigata ; 
spira planulata, marginata ; anfractu ultimo prope terminum anti- 
cum marginato; apertura angusta; columella sexplicata, plicis 
crassis, albis, tribus posticis elevatis, horizontalibus, tribus anticis 
