Zoological Society. 489 



This is rather an unsatisfactory species, though certainly not re- 

 ferable to any hitherto described. 



MiTRA CADAVEROSA. Mitv. testd ovato-turvitd, spird acutd; an- 

 fractibus transversim impresso-striatis, supra et infra plus minusve 

 angulatis, longitudinaliter costatis, costis ad angulos exasperato- 

 mucronatis ; alhd, halteo angusto fusees cente inter castas cingulatd ; 

 columella quadriplicatd ; aperturce fauce striata. 

 Conch. Icon., Mitra, pi. 21. f. 160. 



Hah. Philippine and Lord Hood's Islands (found under stones at 

 low water) ; Cuming. 



However closely this shell may approximate to the Mitra exaspe- 

 rata, it is uniformly white, and always exhibits a strong peculiarity 

 in the band which appears in the interstices and not upon the summit 

 of the ribs. 



Mitra carnicolor. Mitr. testd subabbreviato-fusiformi, liris 

 parvis subobtusis, alternis majoribus, undique cingulatd, liris striis 

 impressis longitudinaliter incisis ; extus pallide car neolo-f usees - 

 cente, intus rosaced; columelld quinqueplicatd, plied infimd sub- 

 obseurd. 



Conch. Icon., Mitra> pi. 21. f. 164. 



Hab. .? 



A neatly sculptured delicately tinted shell, quite distinct from any 

 hitherto-described species. 



Mitra Hindsii. Mitr. testd laneeolato-fusiformi, spird acutissime 

 turritd ; anfraetibus superne angulatis, infra angulum leviter con- 

 traetis, transversim carinato- costatis, eostd super angulum promi- 

 nentiore, interstitiis concavis, subtilissime elevato-striatis ; lutes- 

 cente, costis spadiceis, epidermide tenui indutd; eolumelld quadri- 

 plicatd, plieis duabus inferioribus fere obsoletis ; aperturce fauce 

 suhrosaced. 

 Conch. Icon., Mitra, pi. 21. f. 165. 



Hab. Gulf of Nicoya (found in mud at the depth of about seven- 

 teen fathoms) ; Hinds. 



This beautiful species, which I have the pleasure of dedicating to 

 a most zealous labourer in the field of conchological research, may 

 be recognised by its graceful form and by the keel-like elevation of 

 the ribs. 



Mitra latruncularia. Mitr. testd abbreviato-fusiformi, tenui- 

 culd, basi truncatd; transversim undique sulcatd, sulcis angustis, 

 crebris, punctatis ; albidd, rubido-castaneo tessellatd et fasciatd ; 

 columelld quadriplicatd. 

 Conch. Icon., Mitra, pi. 21. f. 166. 



Hab. } 



A slight thin shell closely grooved throughout, the grooves being 

 minutely punctured and the intermediate ridges prettily tessellated 

 with white and reddish brown. 



Mitra Deshayesii. Mitr. testd subfusiformi, spird turritd, an- 

 fraetibus superne angulatis, ad angulum nodosis, infra Icevibus ; 



