Mr. R. B. Hinds's Descriptions of new Shells. 19 



quater carinatis ; carinis duobus primariis, inferiore maximo ; 

 duobus secondariis alternantibus ; carinis omnibus maculis albis 

 et fuscis ornatis. Apertura rotundata, sinu laterali patulo. Axis 

 4^ lin. 

 Geog. Straits of Malacca ; from 20 fathoms, mud. 



2. Subgenus Sychar. 

 Testa elongala, anfractus rotundati, apex mamillaris. 



14. T. vitreus. Testa pellucida ; anfractibus quindecim Isevigatis 

 rotundatis, lineis duabus elevatis cinctis ; apice mamillari ; aper- 

 tura subquadrata ; sinu laterali patulo. Axis 4^ lin. 



Geog. Straits of Malacca ; dredged from 20 fathoms. 



One of the elevated lines traverses the whorl about its 

 centre ; the other, not at first very apparent, will be found on 

 its lower surface near the suture. 



3. Subgenus Mastonia. 

 Testa acuminata, circa mediam tumida. 



15. T. vulpinus. Testa nigricante ; anfractibus quatuordecim trica- 

 rinatis ; carina inferiore albida ; apertura rotundata ; sinu laterali 

 subnullo. Axis 3 lin. 



Geog. New Ireland ; found, with other small shells, among fine 

 gravel about low- water mark. 

 IG. T. moniUfer. Testa parva, elegantissime monili ; anfractibus 



decem biseriatim granulosis ; granulis seriei inferioris albis inter- 



vallis rubris, supremae albis ; apertura subquadrata, sinu lateral! 



angusto. Axis 2^ lin. 



Geog. Straits of Malacca ; in 18 to 23 fathoms, mud. 



The manner in which the lower series of markings is re- 

 peated in the last whorl is very evident in this species, though 

 to be met with in nearly the whole. Thus the series of bead- 

 ing, which is single on the upper whorls, will here be found to 

 be double on the last. 



17. T. Grayii. Testa ovali ; anfractibus decem, superioribus bise- 

 riatim granulosis moniliferis, duabus inferioribus triseriatim, serie 

 media minima. Axis 4^ lin. 



Geog. The Mediterranean Sea. Cab. Gray. 

 The single specimen of this very pretty shell has the mouth 

 much injured. 



18. T. ruber. Testa rufa ; anfractibus undecim biseriatim granu- 

 losis, seriebus subdistantibus suturam obtegentibus ; apertura ro- 

 tundata ; sinu laterali margine contracto. Axis 4 lin. 



Geog. New Ireland ; numerous among fine gravel at low water. 

 Straits of Malacca; in 20 fathoms. 



Its reddish colour and double series of tubercles will readily 

 distinsruish this shell. In some of the specimens a small in- 

 C2 



