10 MUREX. 



varicibus postice erassis, rotnndis, antice versus et super 

 canalem laqueatirn fimbriatis ; apertura ovata, margine den- 

 tato, canali brevi, lato ; ad terminum curva spira pyramidali, 

 anfractibus subdepressis. — A well-known shell of roughly 

 tubercled aspect, variously coloured, with the lower part of 

 the varices fringed and fluted. One of the varieties has 

 been named M, Cuming ii. 



43. pulcher, f. 119, A. Adams. — Testa eleganter fusi- 

 formis rubescens, fusco maculata et fasciata, spiraliter lirata, 

 intervarices triplicata ; varices angustis, tuberculiferis, antice 

 plicato fimbriatis, canali elongato, attenuato, eleganter curvo ; 

 apertura ovata, margine intus dentato. — I think Mr. Adams 

 has rightly renamed this shell, Mr. Eeeve having erroneously 

 identified it with M. trigonulus. 



44. lacineatus, f. 118, 138, Sowerby. — Testa ventricoso- 

 fusiformis, crassa, rugosa, rubescens, vel aurea, fusco macu- 

 lata, spiraliter lirata, inter varices plicato-bituberculata ; 

 varicibus erassis, superne subfrondosis, ad aperturam et infra 

 lacineatis, ad canalem subalatis ; spira breviuscula, anfracti- 

 bus quinis, rotundis ultimo ad canalem contractis, apertura 

 subrotunda margine crenato. — In sculpture resembling M. tri- 

 queter, &c, but short or ventricose. The fronts of the varices 

 are beautifully lace-fringed. 



45. Barclayi, f. 133, Reeve. — Testa trigono-fusiformis 

 obliqua, roseo-lutescens, indistincte fusco fasciata et maculata, 

 spiraliter lirata et interstriata, inter varices plicis tribus 

 elongatis, tuberculatis munita ; varicibus erassis, extantibus, 

 valide tuberculatis fronte, antice prascipue in fimbriam la- 

 queatam gradatim espansa ; apertura ovata, margine externo 

 intus dentato ; canali eleganter recurvo.^ — Although of a 

 different form, this species has a strong affinity with M. tri- 

 gonulus, the characters being the same in the two species, 

 excepting that one is broad and ventricose while the other is 

 narrowly fusiform. 



Sect. III. Three varices with branched fronds. 



46. monodon, f. 55, 56, Sowerby. — Testa fusiformis, rufes- 

 cente-fusca, frondibus nigrescentibus, vel albida, apertura 

 rubro marginata, spiraliter subrugose lirata et striata, prope 

 suturam excavata, varicibus crassiusculis, frondibus elongatis, 

 arcuatis, subramosis, ad marginem aperturse supra tribus 



