M I T R A. 



Species 106. (Mus. Brit.) 



Mitra Grcenlandica. Mitr. testa ovatd, utrinque sub- 

 attenuatd, laevigata albidd, epidermide fused indutd ; 

 apertura fauce albd ; columella ijitadriplicatd. 



The Greenland Mitre. Shell ovate, somewhat atte- 

 nuated at both ends, smooth, whitish, covered with 

 a brown epidermis ; interior of the aperture white ; 

 columella four-plaited. 



Hub. Greenland. 



Gray, MSS. British Museum. 



I am not aware whether any description of this little 

 northern species has yet been published. 



Species 107. (Mus. Cuming.) 

 Mitra obeliscus. Mitr. testa acuminato-turritd, spird 



acuta : (infract ibus longitudinaliter cost at is, cost is 

 angustis. crebris, intersti/iis impresso-cancellatis ; lu- 

 Icd albd cingulatd; columelld 

 quadriplicatd, basi contorto-rccured. 

 The obelisk Mitre. Shell acuminately turreted, spire 

 sharp ; whorls longitudinally ribbed, ribs narrow, 

 close-set, interstices impressly cancellated ; yellow- 

 ish brown, encircled with a single white line ; colu- 

 mella four-plaited ; base recurved in a twisted 



Reeve, Pro. Zool. Soc, 1844. 



Hub. Bais, island of Negros, Philippines (found among 

 coarse sand and stones at the depth of seven fa- 

 thoms) ; Cuming. 

 The whorls are numerous in this species and rather 



contiguous. 



Species 10S. (Mus. Cuming.) 

 Mitra funerea. Mitr. testa abbreviato-fusiformi, spied 

 acuta : anfractibus rotundis, lieis teanseersis et lon- 

 gitudinalibus creberrime decussatis, anfractu ultimo 

 Itevigato, ad basim sulcata ; fused, baltea unico an- 

 gusto flavicante cingulato ; columella triplicatd, basi 

 recurea. 

 The funereal Mitre. Shell shortly fusiform, spire 

 sharp, whorls round, very closely decussated with 

 longitudinal and transverseridges, lastwhorl smooth, 

 grooved at the base ; dark mahogany-brown, encir- 



cled with a single narrow yellow belt ; columella 

 three-plaited ; base recurved. 

 Reeve, Pro. Zool. Soc, 1844. 



Hub. Pasacao, South Camarinos, island of Luzon, Phi- 

 lippines (found in sandy mud at the depth of six 

 fathoms) ; Cuming. 

 The whorls of the spire have a peculiar rounded de- 

 cussated appearance, with the yellow belt just falling in 

 the sutural depression. 



Species 109. (Mus. Cuming.) 



Mitra nigra. Mitr. testa ovatd, crassiusculd, subven- 

 tricosd, spird brevi, lievigntd, ad basim exiliter sul- 

 cata; intus extusque purpureo-nigricante ; columelld 

 quadriplicatd, ca/lusitate albd supern'e armatd. 



The black Mitre. Shell ovate, rather thick, somewhat 

 ventricose, spire short, smooth, faintly grooved at 

 the base ; purple-black within and without ; colu- 

 mella four-plaited, armed with a white callosity at 

 the upper part. 



Quoy, Voyage de 1' Astrolabe, pi. 45. f. 16 to 18. 



Hub. Carteret Harbour, New Ireland ; Quoy. 



A dark, shining, purple-black, oval shell with a small 



white callosity on the body whorl, at the termination of 



the lip. 



Species 110. (Mus. Cuming.) 



Mitra fusca. Mitr. testa cylindraceo-oblongd, in medio 

 leviter contractu, spira snlmbtitsd, prope apicem subti- 

 lissimt punctato-st riatd ; Iiceitjata, albidd, epidermide 

 nigricante-fuscu indutd ; columelld quadriplicatd, le- 

 viter umbilicatd ; labro basim versus effuso. 



The brown Mitre. Shell cylindrically oblong, slightly 

 contracted in the middle, spire rather obtuse, very 

 finely striated with punctures near the apex ; 

 smooth, whitish, covered with a dark brown epider- 

 mis ; columella four-plaited, slightly umbilicated ; 

 lip effused towards the base. 



Mitre/la fusca, Swainson, Zool. Illus., Second Series. 



Hub. Island of Madeira (found iu rocky places at low 

 water) ; Cuming. 

 Distinguished by its peculiarly contracted cylindrical 



form. 



September 1S44. 



