M I T R A. 



Species 51. (Mus. Norris.) 

 Mitka tumida. Mitr. testa abbreviato-fusiformi, spird 

 brevi, apice acuta ; anfractibus tumidis, superne plano- 



anyulatis, hntyiludiiialiter rude costatis, costis ad an- 

 gulum noduloso-tumidis ; albida aut virescente, an- 

 fractibus ml (inyuhnii riifn line/is, ultimo balteo niyro 

 latiusculo cingulato ,• columella tri- aut guadriplicatd ,• 

 apertures fauce niyricante-fuseii. 



The swollen Mitre. Shell shortly fusiform, spire 

 short, apex sharp ; whorls swollen, flatly angulated 

 round the upper part, longitudinally rudely ribbed, 

 ribs nodulously swollen at the angle ; whitish or 

 greenish, whorls stained with red about the angle, 

 last whorl encircled round the middle with a rather 

 broad black belt ; columella three- or four-plaited ; 

 interior of the aperture blackish brown. 



Reeve, Pro. Zool. Soc, 1844. 



Hub. New Holland. 



A few specimens of this peculiarly swollen shell were 

 lately brought from New Holland in H..M.S. Beagle. 



species were it not for the exact similarity of the paint- 

 ing, and the circumstance of their being found together 

 in the same locality. 



Species 52. (Fig. a and b, Mus. Cuming.) 

 Mitra t.eniata. Mitr. testd e/oiigato-fusiformi, spird 

 ucuminato-productd ; anfractibus conrexis, lonyitudi- 

 nalitcr costatis, costis obtusis, intersiitiis transverse 

 striatis ; aurantio-rubro alboque alternatim zonatd, 

 zonarum maryinibus niyro-ttcniatis ; columelld gua- 

 driplicatd. 

 The filleted Mitre. Shell elongately fusiform, spire 

 acuminately produced ; whorls convex, longitudi- 

 nally ribbed, ribs obtuse, interstices transversely 

 striated ; zoned alternately with orange-red and 

 white, edges of the zones filleted with black ; colu- 

 mella four-plaited. 

 Lamarck, Anim. sans vert., vol. vii. p. 307 ; Enc. Meth., 



pi. 373. f. 7. a and b. 

 Hab. Philippine Islands (found on the reefs at low 

 water) ; Cuming. 

 This beautiful shell may be distinguished from the Mi- 

 tra reyi/ia, to which it is so nearly allied, by the absence 

 of that angular structure round the top of the whorls so 

 peculiar to that species. In a young state the Mitra 

 tmniata, as shown at Fig. a, is singularly turned upwards 

 at the base, and might easily be mistaken for a new 



Species 53. (Mus. Cuming.) 



Mitra rupicola. Mitr. testd abbreviato-fusiformi, in 

 medio obesiusculd, spin! attenuatd ; anfractibus su- 

 perne unyalatis, costis latiusculis obtusis lonyitudina- 

 libus et transversis decussatis, ud decussationem no- 

 dosis ; earned, epidermide fused, cor/mi. crassd, ad 

 apicem erosd, indutd ; columelld triplicatd. 



The rock-inhabiting Mitre. Shell shortly fusiform, 

 rather stout in the middle, spire attenuated ; whorls 

 angulated at the upper part, decussated with rather 

 broad, obtuse, transverse and longitudinal ribs, no- 

 duled at the point of crossing ; flesh-colour, covered 

 with a thick brown horny epidermis, eroded about 

 the apex ; columella three-plaited. 



Reeve, Pro. Zool. Soc, 1844. 



Hab. St. Elena, West Columbia (dredged from a rocky 

 bottom at the depth of fourteen fathoms) ; Cuming. 



A new and very distinct species, at present unique in 

 the collection of Mr. Cuming. 



Species 54. (Mus. Dennison.) 



Mitra balteolata. Mitr. testd fusiformi, spird acu- 

 minato-turritti ; anfractibus transversim elevalo- 

 striatis, longitudinaliter costatis, costis confertis, an- 

 f'ractiis ultimi subevanidis ; balteolis nigris duobus 

 in medio cingulatis, supra cinereo-albidd, lined unicd 

 fused circumornatd, infra aurantid, interdum cim n o- 

 viridescente tinctd, apice fusco ; columella guadripli- 

 catd. 



The narrow-belted Mitre. Shell fusiform, spire 

 acuminately turreted ; whorls transversely elevately 

 striated, longitudinally ribbed, ribs close, of the 

 last whorl somewhat indistinct ; encircled round 

 the middle with two narrow black belts, ashy 

 white above, ornamented with a single brown line, 

 orange beneath, sometimes stained with faint ashy 

 green, apex brown ; columella four-plaited. 



Reeve, Pro. Zool. Soc, 1844. 



Hab. Mollucca and Philippine Islands (found at the 



September 1844. 



