MUREX. , ] 1 



elougatis infra duabus minoribus, ad canalem duabus, superi- 

 ori longissirna retrorsim valde arcuata ; apertura subrotunda, 

 margine externo angulatim laqueato, infra dente maguo 

 armato ; canali elongato, eleganter curvo, ad terrninuin libero. 

 — Having one large tooth at the lower part of the aperture, 

 and one of the long curved fronds of each varix curiously 

 curved upwards. 



47. cervicornis, f. 30, Lamarck. — Testa gracile fusiformis, 

 spiraliter lirata, fulva ; varieibus crassis, rotundis, vix spino- 

 sis ad canalem libere extantibus frondibus elongatis insequali- 

 bus, duabus ramosis, peculiariter bifurcatis duabus ad canalem 

 spinosis ; canali elongato, augusto subangulatim recurvo. — 

 The long bifurcate fronds have exactly the appearance of a 

 stag's antlers. 



48. axicornis, f. 31, Lamarck. — Testa gracile fusiformis, 

 fulva, vel fusca-nigrescens, inter varices plicato-bitubercu- 

 latis ; varieibus ramoso-frondosis, frondibus ad marginem 

 aperturse duabus insequaliter elongatis spinoso-ramosis ad 

 terminum expansis alteris intermediis parvis subpalmatis, 

 una majuscule, duabus parvis; canali arcuatim curvo. — The 

 fronds of this species are likened to those of a kind of stag 

 anciently called the axis ; they are not bifurcate, but ex- 

 panded and spinous at the ends. There is a darker and 

 more ventricose variety, which we have not figured. 



49. ramosus, f. 69, Linnceus. — Testa magna subtrigona, 

 ventricosa, alba, fusco nebulosa, spiraliter distanter Hrata et 

 interstriata, inter varices tuberculis plurimis pliciformibus 

 munita ; varieibus ramoso-frondosis, frondibus crispis dentato- 

 laqueatis apertura magna, margine laqueato et denticulate, 

 dente maximo infra armato ; columella rosea, laminatim pro- 

 ducto. — M. ramosus is variable in size, colouring, and some 

 other characters, but always has its fronds curled backwards, 

 and always shows, at the margin of the aperture, the strong 

 projecting tooth characteristic of so many species, but wanting 

 in all the varieties of M. calcitrapa. 



50. ctacantha, f. 160, Mus. Brit. — Testa griseo-fulva et 

 alba, fauce purpurea, trigona, crassa, minute scabra, spiraliter 

 distanter lirata et interstriata, inter varices plicatim uni- 

 tuberculata ; varieibus crassis, pone foveolatis, fronte obtuse 

 et breviter frondosis, fronde superiori magno, subdepresso, 

 frondibus ad marginem apertune infra angulatim exfolialis 

 et productis. — The prominent tooth at the margin of the 



