MUREX. 1 3 



55. aitroximatus, f. 62, Soiverby. — Testa fusca, apertura 

 violacea, quam M. calcitrapa tenuior, magis elongata. — This 

 shell may possibly be considered distinct from M. calcitrapa 

 although identical in sculpture, form and fronds. The thin- 

 ness of the shell, its colour, and the absence of brown bands, 

 however, render it distinguishable if not distinct. The white 

 shell (fig. 55) might go with either. Whether we consider 

 the species distinct or not, it is certainly not Lamarck's M. 

 elongatus as supposed by Eeeve, and in introducing it at all 

 I am obliged to give it another name. Eeeve's Sinensis is 

 Lamarck's elongatus. 



56. rtJRPURATUS, f. 63, Reeve. — Testa fusca, quam M. 

 calcitrapa magis elongata, crassior, margine apertura? pur- 

 pureo picta, canali elongato, sinistrorsim recurvo. — A unique 

 shell in the British Museum, which appears overgrown and 

 distorted, approaching, if not identical with M. calcitrapa. 



57. crassivaeicosus, f. 52, Reeve. — Testa breviter subtri- 

 gona, solida, fusca, spiraliter granoso-striata et lirata, inter 

 varices bituberculata, spira brevi anfractibus superne angu- 

 latis, varicibus incrassatis, latis, breviter frondosis, apertura 

 magna, alba, labio externo intus dentato, canali lato, brevius- 

 culo. — There is no certainty that this may not be a stunted 

 thickened form of some known species, say M. calcitrapa, 

 for example. 



58. palma-ros.'E, f. 37, Lamarck. — Testa trivaricosa, 

 oblongo-fusiformis, scabra, fusca, nigro fasciata, spiraliter 

 costata, inter varices longitudinaliter tricostata, anfractibus 

 obscure angulatis, ultimo breviusculo, subito ad canalem 

 contracto ; varicibus crassis, prominentibus ; frondibus 

 foliatim spinosis, ad terminum roseis, superne medioque 

 quaternis, superiori majori, prominenti, ad terminum recurvo 

 bifurcato, ad caudam tribus recurvis ; cauda elongata recta ; 

 apertura subelongata, margine utrinque crenulato, nigro 

 maculate — The rose-branched murex differs from all others 

 of its group in the bifurcate upper frond of the varix, the 

 absence of interstitial fronds, and in the black and white 

 denticulations of both borders of the aperture. 



59. Saulle, f. 54, Sowerby. — Testa trivaricosa, elongato- 

 fusiformis, tenuiuscula, fusca, rubro-lineata, spiraliter tenuiter 

 lirata, inter varices bituberculata ; anfractibus exsertis : 

 varicibus angustiusculis, frondosis ; frondibus roseis, foliatim 

 spinosis superne medioque quaternis cum minoribus intersti- 



