304 Mr. E. A. Smith on 



minutissimo incrementique liueia striati ; cauda anf. ultimi liris 

 crassis 4 circumdafca ; apertura long, totius -^j sequans ; labrum 

 costa ultima valide incrassatum, superne vix sinuatum ; canalis 

 brevissimus. 

 Long. 8i mill., diam. 3|-. 



Hab. ? 



From the middle of the body-whorl upward the shell is 

 white, with the exception of two fine brownish lines, one 

 around the middle of the whorls and the other at the inferior 

 suture. 



Pleurotoma (Dnllia) consanguinea. 



Testa elongate ovato-fusiformis, dilute fusca; anfract. 11-12 sutura 

 carinata undulata discreti, infra carinara sulco spirali minima 

 profundo leviter constricti, infra sulcum costis subdistantibus 

 leviter obliquis (in anfr. ultimo ad 10 versus peripheriam obso- 

 letis) instruct!, ubiquo striis spiralibus distinctis supra interque 

 costas coutinuis ornati ; anfr. ultimus infra medium vix con- 

 strictus ; apertura angusta, longitudinis testoD |- sequans ; labrum 

 margine tenui, extra valde incrassatum ; sinus magnus, paululum 

 infra suturam situs ; columella subrecta, superne tuberculata, 

 callo tenui induta ; canalis brevissimus, recurvus. 



Long. 20 mill., diam. 6|-. 



Hah. ? 



There is every probability of this species being an inhabi- 

 tant of the Chinese seas, since it possesses so much of the 

 general character of several forms from that region. P. si- 

 nensisy Hinds, appears to be its nearest relative. The general 

 form, and especially that of the body- whorl and the much 

 sliorter canal, are the principal marks of distinction ; also the 

 ribs are less angular, and the colour is uniform. 



Pleurotoma {DrilUa) ruhro-fusca. 



Testa acuminato-ovata, rubro-fusca, costis, apice et cauda lutescen- 

 tibus ornata ; anfract. 8, convexiusculi, superne ad suturam carina 

 crassissima cincti, deinde costis crassis (in anfr. ultimo 8 versus 

 basim obsoletis) instruct!, transversim incrementique lineis 

 striati ; apertura rubro-fusca, longit. totius i paululo superans ; 

 columella callo fusco superne labro juncto induta ; canalis brevis- 

 simus ; sinus aliquant© profundus. 



Long, lli mill., diam. 4. 



Hah. China Sea. 



The last rib on the body-whorl is considerably larger than 

 the rest. The keel below the suture is very large. 



