398 
MR. Q. B. SOWERBT ON 
tissime umbilicatus, spiraliter liratus, liris 8 (lira minima interveniente) 
rugosiusculis ; columella leviter sinuata, laevigata ; apertura subquadrata, 
intus argentea. 
Alt. 19, maj. diam. 15 millim. 
A single specimen, locality unknown. 
Amathina imbricata, sp. noy. (PL XXV. figs. 12, 13.) 
Testa elongato-subtrigona, insequilatera, sordide alba, utrinque angulata, 
postice incurvata ; dorso leviter concavo, laminis rugosis transversis partim 
tubulosis sculpto, margine sinistrali bicarinato, dextrali unicarinato, 
lateribus corrugatis, dextra concava, sinistra planulata ; apice minutissimo ; 
apertura oblonga, antice quadrata, postice rotundata. 
Long 13, maj. diam. 7, maj. alt. 5 millim. 
Sab. Mauritius. 
This species differs from the type (. Amathina tricarinata) in 
several particulars. Of the three keels, two are close together 
on the left dorsal margin, and the broad space between these and 
the right keel is curiously laminated and corrugated. A single 
specimen of this interesting shell has been sent me from Mauritius 
by M. V. de Hobillard. 
Cochlostyla (Axina) Gtloynei, sp. nov. (PI. XXV. figs. 16, 
17.) 
Testa globoso-depressa, imperforata, solidiuscula, nigro-fusca, ad apicem 
pallida, epidermide albida hydrophana, in strigis obliquis et fasciis trans- 
versis dispositis pulcherrime ornata ; spira convexa, apice obtusa ; an- 
fractus 6, convexiusculi, lente accrescentes, oblique striati, sutura impressa 
sejuneti ; anfractus ultimus subinflatus ad peripheriam obscurissime 
angulatus, superne et inferne convexus ; columella brevissima, albida, 
oblique recta ; apertura parviuscula, transverse oblonga, leviter arcuata, 
ubique subsequaliter lata, intus purpurea ; labrum arcuatum, tenuiter 
reflexum, leviter complanatum, purpureum, fusco limbatum. 
Maj. diam. 33, alt. 24 millim. ; apert. long. 15, lat. 6 millim. 
Sab. Philippine Islands. 
A single specimen, in perfect condition, of this interesting 
shell is in the collection of Mr. C. P. Gfloyne. The whitish 
diaphanous epidermis in oblique streaks and transverse bands 
relieves the plain dark-brown colour of the shell; which, though 
not particularly remarkable in form, differs considerably from its 
congeners. 
Orthalictts MaoAndrewi:, sp. nov. (PI. XXV. fig. 18.) 
Testa elongata, griseo-fulva, fusco zonata et strigata, hie illic nigro 
radiata ; apice obtusiuscula, griseo-lilacea; anfractus 8f, regulariter 
accrescentes, convexiusculi, longitudinaliter leviter striati, sutura impressa 
