MURE X. 



Plate XI. 



Species 42. (Mus. Cuming.) 



Mt'RES IMPERIALIS. Miif. testd ovato-vetttricoid, crassd, 

 ponderosd, tranwersini, costatd et striata, interstitiia 

 pecidkirlti-r piincturatU, tuherciilo subelongato varici- 

 formi inter varices armatd ; qimdrifariam varicosd, 

 varicibus crasnis, tubercuUferis ; albidd, columeUd cor- 

 rugatd ; labro externa deiitato ; canali brevi. 



The imperial Murex. Shell ovately ventricose, thick, 

 ponderous, transversely ribbed and striated, interstices 

 pecidiarly punctured, armed between the varices with 

 a rather elongated varix-shaped tubercle ; four-vari- 

 cose, varices thick, tuberculiferous ; whitish, colu- 

 mella wi'inkled ; outer lip toothed ; canal short. 



SwAiNSON, Zool. Illus. 3nd Series, vol. ii. pi. 67. 



Hab. Isabella Island, California (found on mud banks) ; 

 Captain Belcher, R.N. 



The mouth of this species is sometimes yellow, some- 

 times deep pink. Of the latter variety there is a beautiful 

 example in the collection of Colonel Drummond. 



Species 43. (Fig. a, Mus. Cuming ; Fig. b, Mus. Taylor.) 

 Murex anguliferus. Mur. testa pyriformi-fusiformi, 

 trigouulari, crassiusculd, transversim striata, rugosd 

 et leviter cornigatd, tubercido magna in plicam stejje 

 terminato inter varices ; trifariam varicosd, varidbus 

 subincrassatis, squamis brevibns solidiusculis recurvis 

 muricatis armatis ; albd, fascid fused interdum cingu- 

 latd, columelld et aperturce faitce albis, rosea mar- 

 ginatis ; canali breviusculo, ascendente. 

 The anguliferous Murex. Shell pjTiformly fusiform, 

 triangidar, rather thick, transversely striated, rough 

 and slightly wrinkled, mth a large tubercle between 

 the varices which sometimes terminates in a fold ; 

 three-varicose, varices somewhat thickened, and armed 

 with short solid recurved sharp-pointed scales ; white, 

 sometimes encircled with a brown band, columella 

 and interior of the aperture white, edged with pink ; 

 canal rather short, ascending. 



Variety ^. (Fig. 43 b,) 

 Testa omnino fusca. 

 Shell entirely brown. 



Murex ferrugo, Wood. 

 Lamarck, Anim.sans vert. (Deshayes'edit.),vol.ix.p.588. 



Hab. Ceylon (found on the reefs) ; Miller, R.N. 



This species, which may easily be distinguished by its 

 peculiarly triangidar pyriform shape, is certaiidy not Le 

 Sirat of Adanson (see Plate XXIV.) as Lamarck supposed. 

 The Murex ferrugo of Wood, which I at one time thought 

 to be a distinct species, is unquestionably a variety only 

 of this. 



Species 44. (Mus. Steere.) 



Murex BicoLOR. Mur. testa yloboso-oblongd, tenuiusculd, 

 injiatd, ventricosd, tranmersim striatd, rugosd et leviter 

 corrvgatd ; lira magna elongatd variciformi, tubercu- 

 liferi, inter varices; quinquefariam varicosd, varidbus 

 rotundatis, squamis plus minusve solidis si/penie et in- 

 ferne, tubercuUs compressia in medio, armatis ; roseo- 

 albicante, fuscescente pallidissime tinctd, columelld et 

 aperturm fatice vivide roseis ; labro columellari latis- 

 sime expanso, margine erecto, labro externa dentalo ; 

 canali breviusculo, compresso, ascendente. 



The two-coloured Murex. Shell globosely oblong, thin, 

 inflated, ventricose, transversly striated, rough and 

 slightly wTinkled, with a large elongated, tuberculi- 

 ferous varix-like ridge between the varices ; five-vari- 

 cose, varices rounded, armed at the upper and lower 

 parts with more or less solid scales, in the middle 

 with compressed tubercles ; pinkish white, faintly 

 stained with light brown, columella and interior of 

 the aperture bright pink ; columella lip very widely 

 expanded, erect at the edge, outer lip toothed ; canal 

 rather short, compressed, ascending. 



Valenciennes. Zoology of Humboldt and Bonpland's 

 Voyage, voL ii. 1821. 

 Murex erythrostoma, Swainson. 

 Murex regius,SchuheTt and Wagner (not of Swainson). 

 Murex hippocastanum, Phdippi (not of Linnaeus). 



Hab. Gulf of CaUfomia (found on mud banks at low 

 water) ; Lieutenant Babb, R.N. 



Dr. PhUippi appears to have described and figured in the 

 eighth Part of his ' Abbild. mid Besch. Conch.' under the 

 new title of Murex hippocastanum, a small variety of this 

 species in which the columella is white and the light brown 

 colouring rather predominates. 



May 1845. 



