THE 



QUARTERLY JOURNAL 



OF 



THE GEOLOGICAL SOCIETY OE LONDON 



PROCEEDINGS 



OS" 



THE GEOLOGICAL SOCIETY. 



November 7, 1849. 



The following communications were read : — 



I. Remarks on the Genus Nerin^a, with an Account of the Species 

 found in Portugal. By Daniel Sharpe, Esq., F.G.S. 



The genus Nerine was proposed by M. Defrance, in the * Diction- 

 naire des Sciences Naturelles,' for certain species of turreted univalves 

 found among the oolites, distinguished by having both the columella 

 and the interior of the outer lip furnished with folds which are con- 

 tinued through the whole of the whorls ; but as M. Defrance had 

 not then seen any perfect specimens, he did not give any strict defi- 

 nition of his new genus. 



M. Deshayes gave definite characters to the genus under the name 

 oi Nerin<jea, in the 'Coquilles caracteristiques des Terrains,' p. 203, 

 the principal points of which are the mouth subquadrangular ? cana- 

 liculated ; a broad umbilicated columella with strong spiral folds ; and 

 one or more folds on the interior of the outer lip. 



Thus far the genus presents well-defined limits ; and if we omit 

 the perforation of the columella from its distinctive characters, 

 it consists of a natural group of species. But succeeding authors 



VOL. VI. PART I. I 



