VERTAGUS. 



Plate V. 



Species 21. 



Vektagus asper. Ver. testa ohlongd, alba, lonijUudhia- 

 liter plicatd, plicis nutnerosis, acute serratis ; aperturd 

 uvali, obliqiid, labia inter no postlce uniplicalo, in medio 

 intus oblique biplicato, labro serrato, canali recuno. 



The rough Vertagus. Shell oblong, white, longitu- 

 tudiiially plaited, plaits n\mierous, acutely serrated ; 

 aperture oval, oblique, inner lip with a fold at the 

 back, and two oblique plaits in the centre within, 

 outer lip serrated, canal recurved. 



L1NN.EUS {Murex). 



Clava rugata, Martyn. 

 Stromius viber, Guielin. 

 Murex granulatus, Linnaeus. 



Hab. Isle of France ; Pacific. 



The several varieties of this characteristic species are 

 narrower than I', liiieatus, and their sculpture is much 

 closer. 



Species 23. (Fig. a, b, Mus. Cuming.) 



Vertagus tenui-sculptus. Ver. testa pyramidali, acu- 

 minatd, turrild ; avfraclibus tuimerosis, super ite p rope 

 suturani angulatis et tubercnlis magnis coronatis, infra 

 triseriatini nmdliferis ; aperturd onuii, superne elevatd, 

 canaliferd, labro crenulalo, canali brevi. 



The fine-sculptured Vertagus. Shell pyramidal, 

 acuminated, turreted ; whorls numerous, above, near 

 the suture, angulated aud crowned with large tu- 

 bercles, below beaded in three rows ; aperture oval, 

 raised above, with a canal ; outer lip crenulated, canal 

 short. 



SOWERBY. 



Jlab. Australia. 



Resembling V. gemmatus, but the sculpture much finer. 



Species 23. (Mus. Cuming.) 



Vertagus recurvus. Ver. testd acuminata, albd,fulvo 

 vel rufo inter nodulis punctata ; anfractibus duodecini, 

 triseriatim granosis, ultimo costellis septem granosis 

 ornato ; aperturd postice canaliferd, labia interna antici 

 incrassata, vix pUcaia, canali breviuscula recurvo. 



The recurved Vertagus. Shell acumined, white, spotted 

 with brown and red between the tubercles ; whorls 

 twelve, grained in. three rows, the last ornamenteil 

 with seven granulated ribs ; aperture with a canal at 

 the back,- inner lip thickened in front, scarcely plaited, 

 canal rather short, recurved. 



SoWERBY. 



Hab. Eed Sea. 



The fine specimen now figured has been acquired since 

 the original specimen was described from a specimen 

 whose locality was then unknown. 



Species 2i, a, b. 



Vertagus seminudus. Ver. U-s! a albd, pyramidali, spi- 

 raliter sulcata ; anfractibus supra medium angulatis, 

 tuberculis magnis acutis triseriatim armatis, ultimo 

 infra inermi ; aperturd subqundratd, ad spiram ele- 

 vatd, labro intus crenulato, labia interna laminatd, co- 

 lumella intus obscure biplicato, canali valide ad dorsum 

 recurvo. 



The half-bare Vertagus. Shell white, pyramidal, 

 spirally sulcated; whorls angulated above the centre, 

 armed with three series of large, sharp tubercles, the 

 last without tubercles below; aperture subquadrate, 

 elevated towards the spire, outer lip crenulated within, 

 inner lip laminated, eoluiuella obscurely biplicated 

 within, canal strongly recurved over the back. 



SowERBY. 



ILib. New Caledonia. 



This white shell is remarkable for its sculpture, having 

 three rows of sharp, large tubercles on each whorl, the 

 lower part of the last whorl being plain. 



Species 25. (Fig. a, h, Mus. Cuming.) 



Vertagus torulosus. Ver. testa albidd, ad apicem li- 

 vidd, costis noduliferis ornatd ; anfractibus ad suturam 

 moniliferis, tumidis, spiraliter coslatis ; aperturd sub- 

 rotundd, superne canaliferd ; labro expanso, digitalo. 

 canali breci. 



The corded Vertagus. Shell whitish, livid at the 



March, ISOU. 



