M U R E X. 



Plate II. 



Species 6. (Mus. Taylor.) 



MuREX BIPINNATUS. Mur. testa elowgato-fusiformi, spird 

 acuminato-turritd ; anfractibm septenis, tramversim 

 eximie liratis, et elevato-striaiis, liris strik et intinr- 

 siitm siMilmiine scabroso-crenulatk, anfractibusprimis 

 senis tuberculafo-nodosis, ultimo trivaricoso, varicibus 

 tdti/nk duobiis pulc/ierrime Jimbriato-piunatis ; tiived, 

 rosacea tinctd, columella pallide rosed ; aperturd parvd, 

 labri externi limio minute denticulato ; canali latius- 

 culo, mbelongato. 



The two-winged Murex. Shell elongately fusiform, 

 spii'e aciiminately turreted ; wliorls seven in number, 

 transversely delicately ridged and elevately striated, 

 ridges striae and interstices very finely scabrously cre- 

 nulated, fii-st six whorls tubcrculously noduled, last 

 whorl three-varicose, last two varices very beautifully 

 fimb;iately winged ; snowy white, tinged -with rose, 

 columella pale rose ; apertiu-e small, edge of the outer 

 lip minutely denticidated ; can;il rather broad, a little 

 elongated. 



Reeve, Pro. Zool. Soc, 1845. 



Hab. ? 



I am much indebted to Mr. Taylor for the loan of this 

 very interesting shell, and readily adopt a name which 

 that gentleman kindly suggests, as indicating the pecu- 

 liarity of there being no appearance of frdl structure ex- 

 cept upon the last two varices. The spire exhibits a mass 

 of prominent nodules, each whorl taking the form of a 

 heptagon \vith as many as seven on its cii'cumference. In 

 general form the Murex bipiimatus approaches the Murex 

 clams ; it wiU, however, be observed on reference to that 

 species that the detail of structure and sculptm-e is distinct 

 thi-oughout. 



Species 7. (Mus. Cuming.) 

 Murex Monoceros. Mur. testa subtrigono-ovatd, spird 

 breviusculd, acutd, suturis impressis; anfractihus senis, 

 inter varices iuberculato-twdosis, transversim elevato- 

 striatis, striis scabrosis; trifariam varicosd, varicibus 

 obtuso-rotmidatis, itodiferis, postice anticeque laminaUs; 

 albidd, glauco-fuscesce)ite tiiictd, apertura fauce palli- 

 dissime purpurascenie-rosed ; canali brevi ; aperturd 

 ovatd, lahro Vitus fortiter tuberculato-dentato, limbo 

 inimite denticulato, denticulo uno autpluribus conspicue 

 erectis. 



The Momoceros-like Murex. Shell somewhat trian- 

 gularly ovate, spire rather short, shai-p, with the su- 

 tures impressed ; whorls six in number, tubereularly 

 noduled between the varices, transversely elevately 

 striated, striae scabrous ; thi-ee-varicose, varices ob- 

 tusely rounded, nodiferous, posteriorly and anteriorly 

 laminated ; whitish, stained wth glaucous browTi, in- 

 terior of the apertm-e very faintly tinged with pm-ple 

 rose ; canal short ; apertm-e ovate, lip strongly tuber- 

 cidarly toothed within, edge minutely denticidated, one 

 or more of the teeth being conspicuously erect. 



SowERBY, Pro. Zool. Soc., 1840. 

 Murex Nuttallii ? Conrad. 



Hab. California. 



The minute scabrous sculptiu-e of this shell is very cha- 

 racteristic, and so is also the obtuse stunted tubercular 

 structiu-e of the varices. The marginal tooth is unusually 

 prominent. 



Species 8. (Mus. Ciuning.) 



Murex saxatilis. Mur. testd subpyrifornd, vetdricosd, 

 spird mediocri ; avfractihus transversim liratis et ele- 

 vato-striatis, striis subundulatis et granosis ; sexfariant 

 varicosd, variciim frondosis, frotidibus posticis anticis- 

 que grandihts simplicibusfoliaceis, canaliculatis, erecto- 

 curcatis, niediaiiis rtmlto brevioribus ; fused vel auran- 

 tio-rubrd, columella canalique vivide roseo-rubentibus, 

 aperturee fauce radiatd ; canali cotupresso, recurvo. 



The rock-inhabiting Murex. Shell somewhat pji-i- 

 form, ventricose, spire middling ; whorls transversely 

 ridged and elevately striated, striae slightly waved and 

 granose ; six-varicose, varices frondose, posterior and 

 anterior fronds large, simple, foliaceous, canalicidated, 

 erectly curved, middle fronds much shorter ; brown 

 or orange-red, columella and canal bright pinkish red, 

 apertm-e radiated with the same colour ; canal com- 

 pressed, recurved. 



LiNNyEUS, Syst. Nat. (Gmelin's edit.) p. 3529. 



Hab. Eastern Seas. 



The shell which I have selected for the illustration of 

 this beautiful and well-known species, is one of the rich 

 orange-red variety. The ordinary colour of the outer sur- 

 face is a light fidvous brown. 



April 1845. 



