224 



9. MoNOPTYGMA TENELLA, A. Adams. 31. testa ovato-turritd, 

 alba, subpellucidd, anfractibus quatuor, convexiusculis, trans- 

 versim tenuiter striata ; aperturd ovali, labio subreflexo, plied 

 obsoletd instructo; labro dilatato, margine flexuoso incrassato 

 et subreflexo. 



Eab. Philippine Islands. Mus. Cuming. 



A small Rissoa-Wke: shell, with only a faint indication of a plait on 

 the coluraellar lip ; the aperture dilated, and the outer lip expanded 

 and slightly thickened anteriorly. 



10. MoNOPTYGMA STYLiNA, A. Adams. M. testd stibulatd, in 

 medio incrassato, albd, subpellucidd, anfractibus 9-12, planius- 

 culis, transversim temdter sulcatd, longitudinaliter substriatd ; 

 aperturd oblongd, labio superne plied obliqud instructo ; labro, 

 in medio, subrecto. 



Hab. Catanuan ; PhiUppines. Mus. Cuming. 

 A remarkable white subulate shell, with the middle whorls, espe- 

 cially those near the apex, enlarged. 



11. MoNOPTYGMA suTURALis, A. Adams. M. testd subulato- 

 turritd, subumbilicatd, albd, nitidd, subdiaphand, anfractibus 

 septem planis, suturd canaliculatd, transversim sulcatd, an- 

 fractu idtimo subsoluto, fasciis angustis, albo artieulatis, or- 



nato ; aperturd oblongo-ovali, labio plied evanidd instructo. 

 Hab. Philippine Islands. Mus. Cuming. 



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

 the suture deeply channeled. 



6. Descriptions of new Shells, from the Cxjmingian Col- 

 lection ; with a Note on the genus Nematura. 

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



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

 apice obtusiusculo, albidd anfractibus decern planulatis, longi- 

 tudinaliter costatd, eostis confertis cequantibus, inters titiis 

 lineis transversis elevatis ornatd ; aperturd ovali, labio incras- 

 sato, in medio plied unied 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. testd subulatd albd nitidd, 

 anfractibus octo planiusculis longitudinaliter plicatd, plicis 

 eequalibus subconfertis, interstitiis Icevibus; aperturd semiovatd, 

 labio subincrassato plied unicd munito ; labro subdilatato. 



Hab. Philippines. Mus. Cummg. 



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

 ance a Rissoina. 



