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BRITISH FOSSILS. 



Subgenera and Species of Galerites found in Britain. 



Genus. Galerites. 



Subgenus I. Galerites (the British species are all upper-cretaceous). 



1. alhogalerus, Klein. 



2. abbreviata, Lamarck. 



3. subrotunda, Mantell. 



4. castanea, Brongniart. 



Subgenus II. Carotomus. 



1. rostrata, Agassiz (upper green sand). 

 Subgenus III. Discoidea (all the British species are cretaceous), 



1. cylindrica, Lamarck. 



2. favrina, Desor. 



3. subiiculus, Leske. 



4. Dixoni, Forbes. 



Subgenus IV. Holectypds (all the British species are oolitic). 



1. depressa, Leske. 



2. hemisphcErica, Agassiz. 



Edward Forbes. 



June, 1850. 



