173 



October 23, 1832. 



Lieutenant-Colonel Sykes in the Chair. 



The exhibition was resunied of the collection of Shells formed by 

 Mr. Cuming on the vvestern 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. Sovverby. 



Genus Cancellaria. 

 Cancellaria uniplicata. Canc. testd oblongd, utringue acu- 

 minata, Juscd ; anfradibus 5—6 decussatis, prope suturamcre- 

 nulatis, et postice unicarinatis, carinei granosa ; apertura ob- 

 longd in canalem antice producta ; Inbio externo intiis denticu- 

 lato, margine crenvlata į columelld uniplicata : long. 75, lat. 

 0-35 poli. 

 Hab. in America Meridionali prope Panamam. 

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

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

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



Genus Ovulum. 



OvuLUM RUFUM. Ov. testd oblongd, postice acutninata, rųfa ; 

 labio eoderno incrassato, pallidiore ; aperturd angustd, antice 

 latiore ; columelld intiis linea lon^itudinali depressd, plicucįue 

 subspirali: long. 0*50, lat. 0-15 poli. 



Var. testą totą pallida. 



Hab. ad Columbiam Occidentalem. 



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

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



Ovulum Avena. Ov. testd oblongd, ritfd, eitranitatibus subacu- 

 minatis ; dorso subgibboso, transversim tenuissime striato ; labio 

 ezterno incrassato, pallidiore ; aperturd angjistd, antice latiore, 

 postice emarginatd; columelld postice uniplicata: long. 055, 

 lat. 0-22 poli. 



Hab. in America Centrali. (Conchagua.) 



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

 G. B. S. 



Ovulum inflekum. Ov. testd oblongd subcylindricd, IcBvi, pal- 

 lida, postice subrostrata, inftexd ; aperturd antice subeffusd ; 

 labio externo incrassato, columellari intiis carinato ; columelld 

 postice uniplicata: long. O'TO, lot. 025 poli. 



Hab. in America Centrah'. (Gulf of Dulce.) 



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

 others, vvhich vvere in G. Humphrey's collection. — G. B. S. 



XXIV.J ZooL.Soc. Proceedings OF THE CoMM.OF Science. 



