109 



trigond, transversim Uratą, liris singulis tubercuUs duobus, basim 

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

 trivaricosd, varicibus rotundatis, prominentibus , squamis frondi- 

 busque prototomis basim versus pracipue, pulcherrime ornatis • 

 eximii 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 

 superrie depressis, transversim liratis et minutissime crispato- 

 scuamatis, multifariam varicosis, varicibus muricato-squamatis ; 

 canali subelongato, patulo ; columelld labroque intus dentatis, labro 

 superrie 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. 



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

 anfractibus rotundatis, sulco subobsoleto prope suturam cinctis, 

 transversirn crebriliratis, longitudinaliter suboblique unduloso-va- 

 ricosis, varicibus obtusis ; castaneo-fuscescente, columelld et aper- 

 turafauce subrosaceis ; canali brevi. 



Hab. ? 



A small chestnut-brown shell, quite distinct from any hitherto 

 described. 



MuREK EURTPTERON. Mur. tcstd ovato-oMongu, basim versus 

 contractd, spira breviusculd, acuminato-turritd, suturis subexca- 

 vatis ; anfractibus superne depressis, transversim obscurc obtuso- 

 liratis et punctato-striatis, tuberculo superficiario inter varices ; 

 trivaricosd, varicibus tenuibus, erecto-alatis, ultimo latissime ex- 

 panso, superne falcato-recurvo ; aperturd parvd, ovatd ; canali 

 breviusculo. 

 Hab. Japan ? 



For this new and remarkable shell I am indebted to the kindness 

 of the Rev. W. R. Crotch, whose manuscript name eurypteron, from 

 evpvs, widely extended, and irtcpov, luing, I feel great pleasure in 

 adopting, as being peculiarly expressive of its curious alate growth. 

 It approaches nearest to the Murex falcatus , but in that species there 

 are live varices on a ■whorl, whilst in this there are but three, and the 

 ■vvinged expansions of the Murex falcatus are folded over at the su- 

 perior margin. The specimen above described, and which is, I be- 

 lieve, unique, was received from Holland, and is supposed to have 

 come from Japan. 



Genus Pleurotoma. 



Pleurotoma rosacea. Pleur. testd ovato-turritd, anfractibus ro- 

 tundatis, superne depresso-concavis, transversim subtiliter striatis. 



