113 



June 12, 1832. 

 Dr. Marshall Hall in the Chair. 



The exhibition was resumed of the new species of Shells collected 

 by Mr. Cuming on the western coast of South America and among 

 the islands of the South Pacific Ocean. 



The whole of the new species, thirty-nine in number, of the 



Genus Columbella 

 contained in the collection, were illustrated by Mr. G. B, Sowerby. 

 They are as follow : ' 



Columbella PULCHERitiMA. Col. testd ovatd, sjrird ' subulatd ; an- 

 fractibus 9, primo minimo, albo, 2do, Stio, 4to et 5to nigro-ru- 

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

 sulcatis ; ultimo ventricoso, longitudinaliter rugoso, et spiraliter 

 sulcato, albido, sulcis brunneis ; labio externo incrassato ; peri- 

 tremate polito, intus superne emarginato, infrd denticulato ; labio 

 interno tenui, polito ; canali re curvd : long. 1, lat. ± poll. 

 Hab. ad oras America? Centralis. (Gulf of Dulce.) 

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



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

 albido maculatd, epidermide tenui fulvd indutd ; spird brevi ; 

 anfractibus 6-7, marginibus crenulatis, ultimo trigonali, longi- 

 tudinaliter costato ; aperturd elongatd, superne in canalem elon- 

 gatam productd ; labio externo incrassato, inflexo, intus denticu- 

 lato ; canali subrecurvd : long. tV, lat. W poll. 



Hab. in Sinu Panamas. 



Found on dead shells in ten fathoms. 



Columbella bicanalifera. Col. testd ovato-pyramidali, apice 

 acuto, basi spiraliter sulcato ; anfractibus 7, superioribus longi- 

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

 lido, fusco strigato, strigis prope suturas saturatioribus ; aperturd 

 oblongd, in canalem superne decurrente ; labio externo incrassato, 

 reflexo, subflexuoso, superne acuminata • long. -§-§-, lat. -fo poll. 



Hab. ad Insulas Gallapagos. 



Dredged in sandy mud at a depth of ten fathoms. 



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

 et guttata ; spird acuminatd ; anfractibus!, superne angulosis, 

 ultimo ventricoso, infrh spiraliter sulcato ; aperturd oblongd, in- 

 tus violascente, superne angulatd; labio externo fiexuoso, sub- 

 incrassato, intus denticulato ; columelld infrh unituberculatd ; 

 labii interni margine ad basin denticulatd : long., 1VV> lat .-^ poll . 



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



