Zoological Society. 51 



sordide albd, longitudinaliter plicatd ; transversim liratd, liris 

 apud plicas nodulosis ; interstiliis valde et regulariter clatliratis ; 

 anfractu ultimo antice angustato et reflexo ; columelld plicis quin- 

 que instructd; labro interne sulcata, margine crenulato. 



Hub. China Seas. 



This species, remarkable for the strong cancellation! between the 

 longitudinal plicae, was brought home in H.M.S. Samarang. 



15. MiTRA LiGATA, A. Adams. M. testd ovato-fusiformi; spird 

 aperturd longiore, anfractibus plants ; castaneo-fuscd, lined unicd 

 pallidd, transversd in medio anfractuum, longitudinaliter plicatd, 

 transversim subliratd; columelld plicis quatuor ; labro simplici, 

 margine acuta. 



Hub. Pasacao, province of South Camarinas; isle of Luzon, on 

 the sands. 



The colouring of this species is very different from the allied spe- 

 cies, and the sculpture is pecuhar to many species belonging to the 

 subgenus Turris of Schumacher. 



16. MitRA viBEX, A. Adams. M. testd ovato-fusiformi ; spird 

 aperturam <equa?ite ; anfractibus rotundis ; fused, prope suturas 

 palliduld, zonuld albd angustd transversd in medio anfractuum; 

 longitudinaliter carrugato-plicatd , transversim liratd, liris apud 

 plicas nodulosis ; interstitiis longitudinaliter striatts ; anfractu 

 ultimo angustato et antice subreflexo ; columelld plicis quatuar in- 

 structd; labro acuta. 



Hab. ? 



This species somewhat resembles armillata of Reeve, but the cor- 

 rugated nature of the plicae distinguishes it. 



17. MiTRA iNTERRUPTA, A. Adams. M. testd ovato-fusiformi ; 

 spird acuminatd ; aperturd breviori ; anfractibus plants, prope 

 suturas angulatis ; albidd, rufa-fusco variegatd ; cinguld trans- 

 versd fused moniliformi in medio anfractuum ; longitudinaliter 

 plicatd, plicis aqualibus, obliquis, obtusis, distantibus ; trans- 

 versim corrugato-liratd ; interstitiis punctatis ; anfractu ultimo 

 antice recurvata ; columelld superne excavatd, plicis tribus in- 

 structd; labro simplici. 



Hab. North Australia. 



The peculiar interrupted, dark, transverse band distinguishes this 

 elegant species. 



18. MiTRA EXiMiA, A. Adams. M. testd ovatd; spird brevi, ob- 

 tusd ; nitidd, aurantiacd, maculis triangular ibus albis, cingillis 

 lavibus, latis, transversis ; interstitiis valde longitudinaliter cla- 

 thratis ; aperturd lineari-oblongd ; columelld plicis quatuor ; la- 

 bro intus Icevi, margine crenulato. 



. Hab.-^-f. 



This pretty little species belongs to the same group as M. leeta, 

 but the sculpture and markings are quite different, although the 

 colour is nearly similar. 



4* 



