Zoological Society. 51 



sordide alba, longitudinaliter plicatd ; transversim liratd, liris 

 apud plicas nodutosis ; interstitiis valde et regulariter clathratis ; 

 anfractu ultimo antice angustato et reflexo ; columelld plicis quin- 

 que instruct a ; labro interne sulcata, margine crenulato. 



Hah. China Seas. 



This species, remarkable for the strong cancellations 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 anfractmim, longitudinaliter plicatd, 

 transversim subliratd ; columelld plicis quatuor ; labro simplici, 

 margine acuta. 

 Hab. Pasacao, province of South Comarinas ; isle of Ltizon, on 

 the sands. 



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

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

 subgenus Turris of Schumacher. 



IG. MiTRA viBEX, A. Adams. M. testd ovato-fusiformi ; spird 

 aperturam eequante ; anfractibus rotundis ; fused, prope suturas 

 palliduld, zonvld alba angustd transversd in medio anfractuum ; 

 longitudinaliter corrvgato-plicatd , transversim liratd, liris apud 

 plicas nodvlosis ; interstitiis longitudinaliter striatis ; anfractu 

 ultimo angustato et antice subreflexo ; columelld plicis quatuor in- 

 structd ; labro acuto. 



Hab. ? 



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

 rugated nature of the plicae distinguishes it. 



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

 spird acuminatd ; aperturd breviori ; anfractibus planis, prope 

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

 versd fused moniliformi in medio anfractuum ; longitudinaliter 

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

 versim corrugato-liratd ; interstitiis punctatis ; anfractu ultimo 

 antice recurvato ; columelld superne sxcavatd, plicis tribits in- 

 struct d ; 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 triangularibus albis, cingillis 

 lavibus, latis, transversis ; interstitiis valde longitudinaliter cla- 

 thratis ; aperturd linear i-oblongd ; columelld plicis quatuor ; la- 

 bro intus Icevi, margine crenulato. 



Hah. ? 



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

 but the sculpture and markings are quite different, although the 

 colour is nearly similar. 



4* 



