ii;j 



June 12, 1832. 

 Dr. Marshall Hali in tlie Chair. 



The exhibitioii was resumed of fhe nevv species of Shells collected 

 by Mr. Cuming on tlie wcstcrn coast of Soulli America and among 

 the islands of tlie South l'acific Ocean. 



The \vhole of the nevv species, thirty-nine in number, of the 

 Genus Columbella 

 contained in the collection, \vere illustrated by Mr. G. B, Sovverby. 

 They are as follow : 



Columbella pulcherrima. Col. testu ovafd , sjnrd subulatd ; aji- 

 fmctibus 9, primo minimo, albo, 2do, Stio, 4to et 5to nigro-nt- 

 fescentibus, politis ; 6to, 7mo, et 8vo concoloribiis, spiraliter 

 sulcatis ; ultimo veiitricoso, lomjitudiruūiter riigoso, et spiraliter 

 sulcato, (libido, suleis brmneis ; labio externo incrassato ; peri- 

 tremate poUto, intiis superne emarginato, infrd denticulnto ; lobio 

 interno temti, polito ; eamdi recurvd : long. 1, lat. į poli. 

 Hab. ad oras Americae Centralis. (Gulf of Dulce.) 

 A single specimen was found in ten fathoms, on a sandy muddy floor. 

 Columbella Harpiformis. Col. testd ovato-suUrigond, nigrd, 

 (libido maculaid, epidermide tenui fvlvd indutd ; spini brevi ; 

 anfractibvs 6-7, miirginihis crenulatis, ultimo irigonali, longi- 

 tudrmliter costato ; aperturd elongatd, superne in canalem elon- 

 gatam produetd ; labio externo incrassato, inflexo, intiis denticu- 

 lato ; canali subrecvrvd ; long. -^, lat. -i^tI^oII. 

 Hab. in Sinu Panamse. 

 Found on dead shells in ten fathoms. 



Columbella bicanalifera. Col. testd ovato-pyramidali, apice 

 acuto, basi spiraliter sulcato ; unfraclibus 7. superioribus longi- 

 tudinaliter rugosis, pallescentibus, fusco-variis ; ultimo pal- 

 Udo,fusco strigato, strigis prope suturas saturatioribus ; apertura 

 oblongd, in canalem superne decurrente ; labio externo incrassato, 

 reflexo. subflexuoso, superne acuminato ■ long.^^, lat. -x% poli. 

 Hab. ad Insiilas Gallapagos. 

 Dredged in sandy mud at a depth of ten fathoms. 

 Columbella spurca. Col. testd oblongd, castaned, albido maculatd 

 etguttatd; spird acuminatd ; anfractibus 1 , superne angulosis, 

 ultimo ventricoso. infrh spiraliter svlcato ; apertura oblongd, in- 

 tiis violascente, supern> angulatd; labio externo flexuoso, sub- 

 incrassato, intus denticulato ; columelld infrci unituberculatd ; 

 labii interni margine adbasin denticulatd : long. \-,\, lat -^ poli. 

 Hab. sub lapidibus ad oras Peruvianas. (Inner Lobos Island.) 



