Zoological Society. 283 



fractu ultimo subsoluto, fmciis angv^tis, alho articulatis, or- 

 nate ; aperturd oblongo-otali, labia jiUcd etanidd instructo. 

 Hab. Philippine Islands. Mus. Cuming. 



A small white species, with the last whorl nearly free, and having 

 the suture deeply channeled. 



4. Descriptions of new Shells, from the Cumingian Col- 

 lection ; WITH A Note on the genus Nemattjra. 

 By Arthur Adams, R.N., F.L.S. etc. 



Pyramidella metula, a. Adams. P. testa subulatd, turritd, 

 apice obtusiusculo, albidd anfractibus decern planulatis, longi- 

 tudinaliter costatd, costis confertis csquantibus, interstitiis 

 lineis transcersis elevatis ornatd ; aperturd ovali, labio ineras- 

 aato, in medio plica uiiicd instructo ; labro margine subin- 

 crassato. 



Hab. Mizamis, Cagayan. Mus. Cuming. 



A small elongated species, somewhat resesembling a Rissoina, with 

 the intervals between the ribs finely cancellated, and the whorls very 

 numerous. 



Pyramidella aclis, A. Adams. P. teatd subulatd albd nitiddy 

 anfractibus octo planiusculis longitudinaliter plicatd, plicis 

 eequalibits subconjertis, interstitiis Icevibus; aperturd semiovatd, 

 labio subincrassato plied unicd munito ; labro subdilatato. 



Hab. Phihppines. Mus. Cuming. 



This is a slender subulate species, Ukewise resembling in appear- 

 ance a Rissoina. 



Lacuna carinifera, A. Adams. L. testa ovatd, spird acuminatd, 

 anfractibus qiiatuor, late umbilicatd, fuhd, anfractu ultimo 

 angulato, carind transversd eletatd, rufo-fusco articulatd, or- 

 nato ; aperturd semiovatd ; labro acuto, angulato, labio recto, 

 fssurd umbilicali elongatd. 



Hab. Borneo. Mus. Cuming. 



The single prominent keel round the periphery of the last whorl 

 is the principal feature of this species. 



Velutina Sitkensis, a. Adams. F. testa nigro-fuscd, epider- 

 mide liris elevatis transcersis confertis obtectd, longitudinali- 

 ter valde sulcata, sulcis subdistantibus ; aperturd ovali, intus 

 sulcatd ; labro margine reflexo, nigro, incrassato ; postice non- 

 producto supra anfractum ultimum. 

 Hab. Sitka. Mus. Cummg. 



The dark brown colour and oval form distinguish this species from 

 V. IcBvigata, which also has the outer hp arched and expanded poste- 

 riorly. 



Otina fusca, a. Adams. O. testd magnd, solidd, semiopacd, 

 fused, sine epidermide, dorso convexd, longitudinaliter subpli- 

 catd, transversim tenuiter striatd, labio lato, piano, et exca- 

 tato ; labro recto, non reflexo aut expanso. 



Hab. Benguela. Mus. Cimiing. 



