119 



Hub. ad Insulas Polynesias, (Annaa^ or Chain Island, and Lord 

 Hood's Island.) 



CoLUMBELLA MAJOR. Col. tcstd ovtttd, medio gibhosd, castaned 

 albido punctulatd ; spird breviusculd, pyramidaU, acuminatd ; 

 anfractlbus 6 — 7, lavigutis, ultimo maximo, supenCc rotuiidato- 

 tnrgido, infra spiraliter sulcato ; apcrturd elongatd, fiexuosd, albd, 

 superne angulatd ; labio externa superii^ obtuse angulato, albo, 

 iiitiis denticulato ; labio columellari svperne calUfero, infrit pli- 

 cato-rugoso : long. l-V, lat. -.''^ poll. 

 Hub. sub lapidibus ad oras Ainericse Meridionalis. (Isle of Muerte.) 

 This species has long been known, and has commonly been call- 

 ed CuL Strombiformis. It does not, however, agree with Lamarck's 

 description of that shell, and Mr. Sowerby possesses specimens of 

 another which corresponds exactly with it. 



CoLUMBELLA PROCERA. Col. testd oblongo-pyramidttU, medio ven- 

 tricosd, carulescenti-albidd , fusco punctatd et maculatd ; spird 

 gradatim acuminatd ; anfraciibus 8 — 9, longitudinaliter costel- 

 latis ; superioribus decussatis ,• mediums subtuberculiferis ; ul- 

 timo medio Icevigato, infra \spiraliter sulcato ; aperturd oblongd, 

 superne acuminatd, subtiis in canalem breviusculam desinente ; 

 labio externo intits denticulato ; columelld arcuatd, lesvi : long. 

 2-rV. Idt. -^^poll. 

 Hah. ad Panamam. 



This species is remarkable for its gigantic size. It must be placed 

 with the Columbellce, although not precisely according with the cha- 

 racter given of that genus by Lamarck ; for it is more nearly related to 

 them than to any other genus. A single specimen only was found. 



CoLUMBELLA PYGM^A. Col. testd oiHito-oblongd, pallescente ; 

 spird acuminatd ; anfractibus 6 ; superioribus 5 longitudinaliter 

 cosfatis, fascid interruptd nigrd ; ultimo superne longitudinaliter 

 costato, infrii spiraliter sulcato, fasciis duabus interruptis nigris ; 

 aperturd latiusculd ; labii exteriii margine superne emarginatd : 

 long. -nV. lat- tV poU. 



Hub. ad Sanctam Elenam. 



Found on dead shells in sandy mud, at a depth of ten fathoms. 



CoLUMBELLA UNicoLOR. Col. testd ovtttd, medio ventricosd, cas- 

 taned ; anfractibus 5, Iccvibus ; suturd profundiusculd ; aper- 

 turd latiusculd, ad basin subeffusd ; canali brevissimd ; labio ex- 

 terno extils subincrassato, ititils denticulis obsoletiusculis non?iullis : 

 long. -r*(r, l<^t. -TT poll. 



Hob. ad Insulas Gallapagos. (Hood's Island.) 



CoLUMBELLA VERSICOLOR. Col. tcstd ovutd, iHcdio vcntricosu, j)al- 

 lidd coloribus variis pictd ; spird acuminatd ; anfractibus 6, su- 

 perne rotundato-angulatis ; suturd profundd ; aperturd superne 

 angulosd ; peritremate intus denticulato : long. -yV, lat. tV poll. 



Hub. ad Insulas Polynesiae. (Annaa, or Chain Island.) 



