173 



October 253, 1832. 



Lieutenant-Colonel Sykes in the Chair. 



The exhibition was resumed of the collection of Shells formed by 

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

 the islands of the Southern Pacific Ocean. The new species were 

 accompanied, as on the previous occasions, by descriptions from 

 the pens of Mr. Broderip and Mr. G. B. Sowerby. 



Genus Cancellaria. 



Cancellaria uniplicata. Cane, testd oblongd, utrinque acu- 

 minata, fused ; anfractibus 5—6 decussatis, prope suturam cre- 

 nulatis, et postice unicarinatis, carina granosd; aperturd ob- 

 longd in canalem antice product a ; labio externo intus denticu- 

 lato, margine crenulatd ; columella uniplicata : long. 75, lat: 

 0-35 poll 



Hab. in America Meridionali prope Panamam. 



This is the only species known to Mr. Sowerby with a single fold 

 on the columella : two specimens were dredged in sand at a depth 

 often fathoms, near Panama, by Mr. Cuming — G. B. S. 



Genus Ovulum. 



Ovulum rufum. Ov. testd oblongd, postice acuminata, rufd; 

 labio externo incrassato, pallidiore ; aperturd angustd, antice 

 latiore ; columella intus lined longitudinali depressd, pliedque 

 subspirali: long. 0*50, lat. 0*1 5 poll. 



Var. testa tota pallida. 



Hab. ad Columbiam Occidentalem. 



A few specimens were dredged in sandy mud at a depth of seven 

 fathoms in the Bay of Caraccas. — G. B. S. 



Ovulum Avena. Ov. testd oblongd, rufd, extremitatibus subacu- 

 minatis ; dorso subgibboso, transversim tenuissime striato ; labio 

 externo incrassato, pallidiore ; aperturd angustd, antice latiore , 

 postice emarginatd; columella postice uniplicata; long. 0*55, 

 lat. 0'22 poll. 



Hab. in America Centrali. (Conchagua.) 



This species varies much in the intensity of its colouring. — 

 G. B. S. 



Ovulum inflexum. Ov. testd oblongd subcylindricd, hevi, pal- 

 lida, postice subrostratd, inflexd ; aperturd antice subeffusd ; 

 labio externo incrassato, columellari intus carinato ; cotumelld 

 postice uniplicata: long. 0*70, lat. 025 poll. 



Hab. in America Centrali. (Gulf of Dulce.) 



A single specimen only was found ; Mr. Sowerby possesses two 

 others, which were in G. Humphrey's collection. — G. B. S. 



XXIV.J Zool.Soc. Proceedings of the Comm. of Science. 



