MITRA.— Plate VI. 



Species 42. (Mus. Cuming.) 

 Mitra Isabella. Mitr. testd elongato-fusiformi, spird 

 subturrilii. suturis profundis, basi contractd, subre- 

 curvd ; anfractibus transversim creberriml costatis, 



cos/is uugnstis, iut.vstiliis runcellalis; albd, aurantio- 

 spadiceo indistincte fasciata et singula ; columelld 

 quinqueplicatd ; apertura fauce albd. 

 The fawn-coloured Mitre. Shell elongately fusiform, 

 spire somewhat turreted, sutures deep, base con- 

 tracted, a little recurved ; whorls transversely very 

 closely ribbed, ribs narrow, interstices cancellated ; 

 white, indistinctly banded and streaked with light 

 orange-bay or fawn-colour ; columella five-plaited ; 

 interior of the aperture white. 

 Tiara Isabel/a, Swainson, Zoological Illustrations, 

 Second Series. 

 Hah. China. 



This species seems to be more or less affected with a 

 singular fatality of fracture. Of several specimens which 

 have come under my notice, the whole are broken in 

 some part or other, and mended by their animal inhabi- 

 tant. 



Species 43. (Mus. Norris.) 



Mitra glabra. Mitr. testa elongato-turritd, Tercbra- 

 formi, basi truncatd, subrecurvd, transversim subti- 

 lissimt striatd ; aurantio-rubrd, lineis capillaribus 

 fuscescentibus cingulatd, epidermide corned glabrd 

 nigricante indutd ; columella quadriplicate 



The smooth Mitre. Shell elongately turreted, Tere- 

 bra-shaped, base truncated and a little recurved, 

 transversely very finely striated ; orange-red, encir- 

 cled with light brown hair-like lines, covered with 

 a smooth horny blackish epidermis ; columella four- 

 plaited. 



Swainson, Exotic Conchology, pi. 24. 

 Mitra buccinata, Quoy. 



Huh. Swan River, Western Australia. 



The fine brown transverse lines are sometimes indi- 

 stinct, but they must nevertheless be regarded as an im- 

 portant specific character. Mr. Swainson described this 

 shell ten years before it was published by M. Quoy in 

 the Zoology of the 'Voyage de l'Astrolabe.' 



Mitra fulva. 

 Plate IV. 



Fig. 24 b. 

 For description of this species see 



Species 44. (Mus. Norris.) 



Mitra declivis. Mitr. testii elongato-turritd , basi trun- 

 catd, spird acuminata; anfractibus supern'r augu/ato- 

 declivibus, lavibus, transversim exilissime impressis , 

 cinereo-carned, epidermide nigerrimd ; columella qua- 

 drip/icutd. 



The bent Mitre. Shell elongately turreted, base trun- 

 cated, spire acuminated ; whorls smooth, angularly 

 bent round the upper part, transversely very faintly 

 impressed ; ashy flesh-colour, epidermis very black ; 

 columella four-plaited. 



Reeve, Pro. Zool. Soc, 1S44. 



Hub. ■ ? 



This shell appears to be quite distinct from the Mitra 

 glabra ; there is no appearance of transverse brown lines, 

 the whorls are angularly bent next the suture, and the 

 spire is more sharply acuminated. 



Species 45. (Mus. Cuming.) 



Mitra attenuata. Mitr. testd ovatti, crassd, solidd, 

 utrinque attenuatd ; spird brevi ; anfractibus trans- 

 versim punctato-striatis ; fused, sparsim albipunc- 



tatd ; columelld sexplicatd ; apcrtura fauce fusces- 

 cente ; labro intus denticulato. 



The attenuated Mitre. Shell ovate, thick, solid, 

 attenuated at both ends ; spire short ; whorls trans- 

 versely striated with punctures ; brown, sparingly 

 dotted with white ; columella six-plaited ; interior 

 stained with brown ; lip denticulated within. 



Reeve, Pro. Zool. Soc, 1844. 



Hab. - ? 



The sculpture of this shell is similar in every respect 



to that of the Mitra fulva; it is however so peculiarly 



attenuated in form towards the base, although of mature 



growth, that I do not see how it can lie referred to that 



species. 



