137 



plicis obtusis, regularibus, distantihus, 7iodosis ; nodis postice 

 prominent ibus ; cingulis transversis nodulosis, obtusis, elevatis, 

 instructd ; anfractu ultimo in medio angustato ; antice productd 

 et subreflexd ; aperturd elongatd ; columelld plicis quatuor ; labro 

 postice angulato, in medio inflexo, intus sulcata, margine crenulato. 

 Hub. Socotra. 



28. MiTRA ALBiNA, A. Adams. M. testd oblongo-fusiformi, albd; 

 spird conicd, longitudinaliter plicatd ; anfractibus subrotundatis, 

 liris transversis ornatis ; anfractu ultimo Itevi, postice subplicato, 

 antice sulcis transversis punctatis ornato ; columelld plicis quin- 

 que ; aperturd oblong o -lineari ; labio subcalloso ; labro acuto. 



Hah. Bataugas, Isle of Luzon, on the reefs. 



This Mitra is perfectly white, and of a very peculiar form ; Mr. 

 Cuming possesses but a single specimen. 



29. Mitra amcena, A. Adams. M. testd oblongo-fusiformi, albd, 

 maculis i-ufis variegatd ; spird acuminatd ,• anfractibus octo, sub- 

 rotundis, carinulis transversis, Icevis, elevatis, rufo-fusco articu- 

 latis, lird intermedid crenulatd, interstitiis eleganter longitudina- 

 liter clathratis ; aperturd angustd ; columelld plicis quinque ; 

 labro tenui, acuto. 



Hab. Red Sea. 



This elegant species belongs to the annulated group. 



30. Mitra rutila, A. Adams. M. testd oblongofusiformi, acu- 

 minatd, aurantiacd, maculis albis sparsis ornatd, fasciis pallidis 

 transversis prope suturas, suturis maculis aurantiacis maculatis ; 

 spird productd, acutd ; anfractibus septem, transversim liratd ; 

 anfractu ultimo liris antice distinctioribus ; aperturd dilatatd; colu- 

 melld plicis quatuor ; labro acuto, antice crenato. 



Hab. ? 



31. Mitra delicata, A. Adams. M. testd ovato-fusiformi ; spird 

 aperturd long lore ; anfractibus planis ; suturd subcanaliculatd, sor- 

 dide albd, fasciis transversis duabus pallidis ; longitudinaliter 

 plicatd, plicis angustis, acutis, crenulatis, interstitiis transversim 

 clathratis, anfractu ultimo antice angustato et recurvato ; colu- 

 melld plicis quatuor; labro margine acuto, crenulato. 



Hab. Cape York, 8 fathoms {Jukes). 



A species of great delicacy, both of colour and sculpture. 



32. Mitra rufescens, A. Adams. M. testd ovato-fusiformi; 

 spird. acuminatd, sordide albd, rufo variegatd, cingillis transversis, 

 acutis, subdistantibus, liris duabus intermediis, interstitiis longi- 

 tudinaliter valde sulcatis, sulcis subdistantibus ; columelld antice 

 tortuosd, plicis quatuor obliquis instructd; labro interni sulcata, 

 margine crenato. 



Hab. China Seas. 



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

 partakes of tlie same kind of sculpture as M. annulata and others, 

 for which Swainson has formed a subgenus. 



