88 



UPPER LIAS. 



so many interesting forms of small Bracliiopoda belonging to the genera Leptcena, 

 Spirifera, Thecidium, Mliynchonella, and Terebratida, together with a number of Gastro- 

 poda and CoiicJiifera, amounting to upwards of 150 species in all. The Leptgena bed 

 forms a remarkable stratum, as it was found by M. E. Deslongchamps to occupy the 

 same stratigraphical position at May, Calvados, as it does in Somersetshire and Glouces- 

 tershire. The following note, January, 1862, from my friend Thomas Davidson, Esq., 

 explains the discovery of the Lias Leptcsnas : "When at Boulogne, in 1847, M. Bouchard 

 received a parcel of fossils from the Lias of Pic de St. Loup, among which were several 

 specimens of a small Leptana, and about the same time I received a small parcel from 

 Mr. C. Moore, among which I recognised two or three species of Lias Leptana, which M. 

 Bouchard and myself described, for the first time, in the ' Annals and Mag. of Natural 

 History ' for October, 1847. The discovery of the Lias Leptcsnas is therefore due to M. 

 Bouchard and Mr. Moore. It was my description and publication of these species which 

 first directed public attention to the subject." 



List of Fossils from the Zone of Ammonites communis {Gloucestershire). 



Reptilia. 



Teleosaurus. 

 Ichthyosaurus. 



Pachycorraus latirostris, Ag. ? 

 Leptolepis conceatricus, Eyert. 



Coleia, sp. 



Libellula Brodiei, Buck. 



Belemiiites tripartitiis, Sow. 



— acuarius, Schlofh. 



— compressus, Voltz. 

 Nautilus latidorsatus, (TOrbig. 

 Ammonites communis, Soiv. 



— serpentinus, Reiaeche. 



— bifrons, Bnig. 



Turbo capitaneus, Milnst. 

 Trochus bisertus, Phil. 



Fishes. 



Crustacea. 



In SECT A. 



Cephalopoda. 



Gasteropoda. 



Plesiosaurus. 



Pterodactylus (coracoid of). 



Tetragonolepis discus, Egert. 

 Dapedius, sp. 



Agrion Buckmanni, Brod. 



Ammonites annulatus, Sow. 



— falcifer, Sow. 



— Lythensis, Y. and B. 



— Eaquinianus, (TOrbig. 



— cornucopia, Y. and B. 



— heterophyllus, Sow. 

 Belemnosepia (ink-bag and osselets). 



Pleurotomaria, subdecorata, Miinst. 



