Zoological Society. 291 



The whorls of this species are strongly tubercled by the varices, 



which are very delicately cancellately ridged across. 



MuREx RUSTicus. Muv, tcstd ovatd, spird acuminato-turritd, an- 

 fractibus medio tumidis, transversim subobscure liratis, tuherculato- 

 v^ricosis, varicibus frondosis, frondibus brevibus, interstitiis mi- 

 nutissime squamatis ; lutescente-albd, varicibus nigricante-fuscis ; 

 aperturd parvd, limbo producto ; canali breviusculo. 



Hab, ? 



A rather solid shell, with an elevated tubercled spire. 



MuREX TURRiTUS. MuT. testd triffouo-ovatd, liris convexis subno- 

 dosis irregularibus confertis undique cingulatd, tuberculo unico 

 inter varices, trifariam varicosd, varicibus peculiariter laminato- 

 frondosis, frondibus erectis, lateraliter convexis ; lutescente livido- 

 olivaceo hie illic saturatiore tinctd, 

 Hab. North Australia; Ince, R.N. 



The entire surface of this interesting new species is encircled with 

 very close-set convex ridges, each terminating on the varices in an 

 erect frond, connected together at the side so as to form a continuous 

 laminated frill extending from the suture to the base. From Mr. 

 Cuming's collection. 



MuREX CROCATUS. Mur. testd trigonO'fusiformi, transversim li- 

 rata, liris parvis, granoso -squamatis, tuberculo inter varices ; tri- 

 varicosd, varicibus frondosis, frondibus obtuso-ramosis ; canali 

 subelongato, frondoso, fuscescente, frondibus rubido-crocatis. 



Hab. ? 



An olive-brown shell, with varices of a bright saffron colour. 

 From Mr. Norris's collection. 



MuREx puDORicoLOR. Mur. testd abbreviate -fusiformi, obliqu^ 

 trigond, transversim liratd, liris singulis tuberculis duobus, basim 

 versus evanidis, inter varices, lined minutd elevatd inter liras ; 

 trivaricosd, varicibus rotundatis, prominentibus, squamis frondi' 

 busque prototomis basim versus prcecipue, pulcherrime ornatis ; 

 eximie rubente. 



Hab. Island of St. Thomas, West Indies. 



An interesting blush-coloured shell, received from M. Griiner of 

 Bremen, of which I have since observed specimens in the British 

 Museum from the island of St. Vincent. 



MuREX Pleurotomoides. Mur. testd pyriformi- ovatd, anfractibus 

 supern^ depressis, transversim liratis et minutissime crispato- 

 squamatis, multifariam varicosis, varicibus muricato squamatis ; 

 canali subelongato, patulo ; columelld labroque intus dentatis, labro 

 supernh sinuato; albidd aut flavicante. 



Hab. ? 



A small pyriform prickly shell, having a sinus in the upper part of 

 the lip, after the manner of a Pleurotoma. 



MuREX pisTACHiA. Mur. testd ovatd, subfusiformi, solidiusculd, 

 anfractibus rotundatis, sulco subobsoleto prope suturam cinctis. 



