166 Mr. E. A. Smith on Mollusca from the 



colour and hardlj raised above the next, which is finely 

 spirally striated, but looks somewhat smoother than the last 

 two. The aperture is smooth within and tinted more or less 

 with light brown. This is occasioned by the red-earthy 

 deposit on the external surface being partially visible through 

 the transparency of the shell. 



15. Capulus Ussus. (PI. IV. figs. 4-6.) 



Testa pileiformis, apice postice valde recurvato, sordide albida vel 

 dilutissime rufescens, lineis inerementi striata, haud radiatim 

 sculpta ; anfractus 3, apicales duo (nucleus) globosi, laeves ; apex 

 pone sed supra marginem aperturae convolutus ; apertura irregu- 

 lariter rotunde ovata, pallide fuscesceus ; peristoma tenue, mar- 

 gine infra apicem incrassato. 



Diam. maj. 11 millim., min. 8, alt. 5^ ; apertura 8| longa, 7 lata. 



Hah. Bay of Bengal, 90-102 fathoms. 



The chief characteristic of this species is the absence of 

 radiating sculpture, a feature common to most species of the 

 genus Capulus. 



16. Turbo [Cantrainea) indicus. (PI. IV. figs. 13 a-c.) 



Testa turbinata, imperforata, solida, alba ; anfractus 4, superne de- 

 clives, coucavi, prope medium angulati vel carinati, celeriter 

 crescenies, ultimus carinis 2-3 circa medium cinctus, striis spirali- 

 bus teuuibus plus minus conspicuis lineisque increment! obliquis 

 seulptus ; apertura obliqua, subrotundata, argeuteo-margaritacea ; 

 labrum crassiusculum, antice leviter effusum ; columella obliqua, 

 arcuata, crassa, in medio tuberculo obsoleto munita, callo submar- 

 garitaceo latissimo labro juncta. 



Diam. maj. 28 millim., min. 23, alt. 26 ; apertura 13 longa et lata. 



Operculum subplanum, album, in medio leA'iter concavum et suboliva- 

 ceum, infra paulo convexum, corneum, olivaceo-fuscum ; anfractus 

 circiter septem, primi quinque lente crescentes, penultimus et 

 ultimus celeriter ampliati. 



Hah. Off Colombo, lat. 6° 29' N., long. 79° 34' E., in 

 597 fathoms. 



This species is remarkable for the uniform white colour, 

 the concavity at the upper part of the whorls, the median 

 angle or carination, and the two or three keels upon the last 

 whorl. Of these, the uppermost is continuous up the spire, 

 the lowermost is at the periphery, and the third, when present, 

 is intermediate between the other two. It is with some hesi- 

 tation that I venture to separate these specimens specifically 

 from the T. peloritanuSj Cantraine, as determined by Jeffreys 



