135 



17. MiTRA iNTERRUPTA, A. Aclams. 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, j)licis aqualibus, obliquis, obtusis, distantibus ; trans- 

 versini corrtigato-liratd ; intei'stitiis punctatis ; anfractu ultimo 

 antice recurvato ; columelld superne excavatd, plicis tribus in- 

 structd; labro simplici. 



Hab. North Australia. 



The pccuUar interrupted, dark, transverse band distinguishes this 

 elegant species. 



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

 tusd ; nitidd, aurantiacd, maculis triangularibus albis, cingillis 

 Itevibus, latis, transversis ; interstitiis valdi longitudinaliter cla- 

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

 bro intus IcEvi, margine crenulato. 



Hab. ? 



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. 



19. MiTRA MULTiLiRATA, A. Adams. M.fusif or mis, spird acu- 

 minatd, aperturam aquante ; anfractibus rotundatis, ad suturas 

 angulatis; pallide rufo-fuscd, cingillis lavibns transversis, aqui- 

 distantibus, obtusis, ornatd; interstitiis lineis longitudinalibus, 

 elevatis, subconfertis, instructis ; anfractu ultimo antice producto 

 et subreflexo ; columelld antice truncatd, plicis quatuor instructd ; 

 labro intus sulcata, margine crenulato. 



Hab. China Seas. 



This species was obtained during the voyage of H. M.S. Samarang. 



20. MiTRA L^TA, A. Adams. M. testd ovatd, crassiusculd, auran- 

 tiacd, punctis albis ornatd; longitudinaliter plicatd ; anfractibus 

 planiusculis, transversim nodoso-liratd ; interstitiis simplicibus ; 

 columelld jilicis quinque instructd; labro crenulato. 



Hab. Ticao, under stones, low water. 



An oblong-ovate, shining, orange species, with scattered round 

 white granules and regular nodulose lirae ; the spire is obtuse ; the 

 whorls are flattened and longitudinally plicate. 



21. MiTRA ORNATA, A. Adams. M. testd oblongo-fusiformi, acu- 

 minatd; spird acutd; anfractibus novem, ad suturas angulatis; 

 suturd subcanaliculatd ; albd, fasciis transversis rufo-fuscis or- 

 natd; longitudinaliter costatd; costis regularibus, obliquis, sub. 

 crenatis ; interstitiis transversim valde clathratis ; anfractu ultimo 

 antice subumbilicato et recurvo ; columelld plicis quatuor ; labro 

 postice subangulato. 



Hab. ? 



This species is peculiar for its regular form and exactness of scul- 

 pture, as well as for its beauty of colouring. 



