PURPURA. 



Plate X. 



Species 46. (Mus. Cuming.) 



PuKPUKA EMARGINATA. Purp. testd ovatit, crassd, spird 

 brevi, niifractibus oblique pllcatk et corrwjatis, trans- 

 versim costatis, cosiis rugosk, compressis, acute nodosis ; 

 colmndld excavatd, ampliier dilalatd ; rubido-fmcd, 

 apertitrte faiice fused, columelld labroque albicantihus. 



Che EMARGINATF.D PURPURA. Shell ovate, thick, spire 

 short, whorls obliquely plaited and wrinkled, trans- 

 versely ribbed, ribs rugose, compressed, sharply no- 

 duled ; columella excavated, largely dUated ; reddish- 

 brown, interior of the aperture brown, lip and colu- 

 mella whitish. 



)eshayes. Rev. Zool. Soc. Cuv., 1839. Magasin de Zool. 

 1841, MoU. PI. 25. 

 Purpura Conradi, Nuttall. 



3aS. California ? New Zealand ? 



There is a considerable degree of uncertainty attending 

 his species, which I am not able to clear up. M. Desliayes 

 lescribed and figured a shell in the Magasin de Zoologie, 

 inder the name of P. emarginata, in an immature state, 

 ;marginated at the lip, said to be brought fi'om New 

 5ealand by M. Chiron ; in the British Museum are several 

 veil-authenticated specimens, answering in their minutest 

 jarticulai-s with M. Deshayes' description and figure above 

 ■eferred to, collected by Mr. NuttaU in California, and 

 laraed by him, in manuscript P. Conradi. 



The emai'gination noticed by M. Deshayes becomes 

 ilmost obliterated with age, and the species differs exceed- 

 ingly in its growth, the transverse ribs varying from smooth 

 to roughly noduled. 



Species 47. (Fig. a and b, Mus. Cuming.) 



Purpura lapillus. Purp. tedd ovatd, spird acuta, an- 

 fractihm lavibm, aid transrersim crebre Uratis, liris 

 obsolete squamatis ; columelld excavatd, aperturd dila- 

 tatd; albidd, aurantio-luteo con-spicue fasciatd, ant 

 ferrugiiieo-fuscd. 



The little stone Purpura. SheU ovate, spire shai-p, 

 whorls smooth, or transversely closely ridged, ridges 

 obsoletely scaled ; columella excavated, aperture di- 

 lated ; whitish, conspicuously banded with orange- 

 yeUow, or rusty brown. 



Variety /3. 

 Testa creberrime Jxmbriato-laminata. 

 Shell very closely fimbriately laminated. 



Buccimmi lapillus, Linnfeus, Syst. Nat. (12th edit.), 

 p. 1202. 

 Eadem. Buccinum filosnm, GmeHn. 

 Hab. Shores of Em'ope. 



To particularize every discriminable variety of this Pro- 

 tean species would occupy more space than the limits of 

 the present work will allow ; suffice it to illustrate the 

 ordinary yellow-banded and lamellated states, and to 

 observe by way of caution, that its modifications of colour 

 and sculpture are]^intinite. M. Kiener has figured twenty- 

 one different varieties of the Purpura lapillus. 



Species 48. (Mus. Cuming.) 



Purpura squamosa. Purp. testd oblongo-ovatd, subven- 

 tricosd, spird prominuld, suturis profundis ; atifrac- 

 tibus rotundafis, transversim crebricostatis, costis an- 

 gustis, obscure squamosis, interstitiis concitine striatis ; 

 rubido-castaned, apertures fauce albd. 



The sauAMOSE Purpura. SheU oblong-ovate, somewhat 

 ventricose, spire prominent, sutures deep ; whorls 

 rounded, transversely closely ribbed, ribs narrow, 

 obscurely scaled, interstices neatly striated ; reddish 

 chesnut, interior of the aperture white. 



Lamarck, Anim. sans vert. (Deshayes' edit.), vol. x. p. 74. 



Hab. Tigre Bay, Abyssinia. 



Approaching rather in form to the Whelk division of 

 the Buccina. 



Species 49. (Mus. Cuming.) 



Purpura attenuata. Purp. testd oblongo-ovatd, basi 

 peculiariter attenuata, anfractibus superne rotundatis, 

 transversuu creberrime carinatis, cari/iis irregnlaribus, 

 angustis, lateraliter excavatis, i/iterdum oblique subti- 

 lissime laminatis ; intus extusque fused. 



The attenuated Purpura. SheU oblong-ovate, pecu- 

 Uarly attenuated at the base, whorls rounded at the 

 upper part, transversely very closely ridged, ridges 

 ii'regular, narrow, excavated at the sides, sometimes 

 obUquely very finely laminated ; brown within and 

 without. 



Hab. ? 



Although partaking somewhat of the character of P. la- 

 pillus, I beUeve it to be nevertheless distinct. 



September, 1846. 



