MUKEX.— Plate XXXI. 



peUuckld, tramvenim ohsolete Urald ; anfractihus ro- 

 tundatk, sexfariam varicosis, varici/ius parvis, anuitli- 

 formibus ; nived; aperturd rotmulatd, labro columellari 

 producto ; canali stibelongato, reairvo. 



The unarmed Murex. Shell elegantly fusifonn, semi- 

 transparent, transversely obsolctely ridged ; whorls 

 rounded, six-varicose, varices small, ring-like ; snowy- 

 vfhite; apertm-e rounded, columellar lip produced; 

 canal slightly elongated, recurved. 



SowERBY, Pro. Zool. Soc, 1840. 



Hab. Japan ; Dr. Siebald. 



A delicately formed species in which the varices bear 



some resemblance to the rings of the Scalaria pretiom. 



Species 1-53. (Mus. Cuming.) 

 Murex decussatus. Mur. testa ovatd, basem versus con- 

 tract a, spird brevi, anffulato-tiirritd ; anfradibus su- 

 periie angidatis, sexfariam varicosis, varicibus aiiffustis, 

 solidis, nodosis, subdistantibus, areis intermediis in an- 

 fractu ultimo costis duabus distantibus decmsatis ; vio- 

 lasceide-albidd, varieum nodis atro-purpureis, aperturce 

 fatice violascente ; labro intus noduloso. 

 The cross-barred Murex. Shell ovate, contracted 

 towards the base, spire short, angularly tm'reted; 

 whorls angulated at the upper part, six-varicose, va- 

 rices naiTOW, solid, nodose, rather distant, iutenne- 

 diate areas on the last whorl cross-barred with two 

 distant ribs ; violet-tinged wliite, nodules of the va- 

 rices jet-pm-ple ; interior of the apertm'e violet ; lip 

 noduled witlun. 

 Murex fscellum var., Sowerby. 

 Hab. Island of Bohol, PhUippines. 



The cross-barred sculptm-e of tliis shell, dividing its 

 smface into regidar square compartments, distinguishes it 

 from the Murex Jtscellum to rank as a separate species. 

 Several examples were collected by Mr. Cuming at the 

 above Island without any particular variation in character. 



Hab. Island of Bohol, PluHppines. 



The variety mentioned by Mr. Sowerby is a distinct 

 species to which I have given the name of Murex nucula, 



PI. xxnc. f. 131. 



Species 154 (Mus. Cuming.) 



Murex cyclostoma. Mur. testa ovatd, gibbosd, spird 

 bremusculd ; sex-varicosd, varicibus prominentibus, an- 

 ticeforaminafis et cancellatis, varicutn interstitiis trans- 

 versim costatis, costis pone varices fortioribics, divergen- 

 tibus; livido-fmcescente, costis albicantibus ; aperturd 

 parvd, rotunda, margine producto. 



The kound-mouth Murex. Shell ovate, gibbous, spire 

 rather short ; six-varicose, varices prominent, ante- 

 riorly cancellated and pierced with holes, interstices 

 between the varices transversely ribbed, ribs diver- 

 gent and stronger behind the varices ; livid-bronii, 

 ribs wliitish ; aperture small, round, edge produced. 



Sowerby, Pro. Zool. Soc, 1840. 



Species 155. (Mus. Cimiing.) 

 Murex incisus. Mur. testa globoso-ovatd, crassd, spird 

 brevi, subobtusd; septifariam varicosd, varicibus rotun- 

 datis, incrassatis, opproxirnatis, transversim carinato- 

 costatis et striatis, costis striisquepulckeirims squamato- 

 crenulatis; alba, costis eastaneis ; aperturd parvd. 

 The carved Murex. Shell globosely ovate, thick, spire 

 short, rather obtuse ; seven-varicose, varices rounded, 

 thickened, approximated, transversely carinately rib- 

 bed and striated, ribs and striae very beautifidly 

 squamately crenulated; white, ribs chesnut-brown ; 

 apertm-e small. 

 Broderip, Pro. Zool. Soc, 1833. 



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

 bottom at the depth of eight fathoms) ; Cuming. 

 A species well distinguished by the naiTow cremdated 

 keel-like ribs which cross the varices at regular- and fre- 

 quent intervals tlu-oughout. 



Species 156. (Mus. Cuming.) 

 Murex uncinarius. Mur. testd trigono-ovatd, sub/iisi- 

 formi, spird snbactuninatd, Itevigatd, tuherculo fere ob- 

 soh'to inter varices ; trifariam varicosd, varicibus squa- 

 ma plano-compressd uncinatd superne armatis, infra 

 plano-fimbriatis ; fulvo-albicante ; aperturd parvd; 

 canali brevi, clauso. 

 The hooked Murex. Shell triangidarly ovate, somewhat 

 fusiform, spii-e rather acimiinated, smooth, vnih- a 

 nearly obsolete tubercle between the vai-ices ; three- 

 varicose, varices armed at the upper part ^\-ith a flatly 

 compressed hooked scale, below flatly fimbriated; 

 fulvous white ; apertm-e small ; canal short, closed. 

 Lamarck, Anim. sans vert. (Deshayes'edit.),vol.ix. p.579. 



Murices Capensis and Mitriformis, Sowerby. 

 Hab. Cape of Good Hope. 



Lamarck refen-ed in doubt to Mai-tini's figm-e of the 

 Murex clavus thinking, probably, that tins was the young 

 of that species ; and hence ai-ose the confusion of Martini's 

 shell (Murex clavus) being taken for Lamarck's Murex 

 uncinarins. 



I ought, perhaps, to notice an error info which M. 

 Deshayes has fallen in stating that this shell is a species 

 of Tgpkis. The distinguishing character of that genus is 

 the presence of an erect fistidous tube between the varices 

 in place of a tubercle ; of which there is uo indication in 

 the Murex uncinarius. 



