88 



UPPER LIAS. 



so many interesting forms of small Bracbiopoda belonging to tlie genera Leptaiia, 

 Spirifera, Thecidium, Mhynchonella, and Terebratula, together with a number of Gastro- 

 poda and Conchifera, amounting to upwards of 150 species in all. The Leptsena 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 Le-pfanas : "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 Leptcena, 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 Leptanas 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 o/" Ammonites communis {Gloucestershire). 



Reptilia. 



Teleosaurus. 

 Ichthyosaurus. 



Pachycormus latirostris, Ag. ? 

 Leptolepis concentricus, Egert. 



Coleia, sp. 



Libellula Brodiei, Buck. 



Belemnites tripartitus, Sow. 



— acuarius, Sehloth. 



— compressus, Voltz. 

 Nautilus latidorsatus, (VOrbig. 

 Ammonites communis, How. 



— serpentinus, Reineche. 



— bifrons, Brug. 



Turbo capitaueus, Miinst. 

 Trochus bisertus, Phil. 



Fishes. 



Crustacea. 



Insecta. 



Cephalopoda. 



Gasteropoda. 



Plesiosaurus. 

 Pterodactylus (coracoid of). 



Tetragonolepis discus, Egert. 

 Dapedius, sp. 



Agrion Buckmauni, Brod. 



Ammonites annulatus, Soiv. 



— falcifer, Soiv. 



— Lythensis, Y. and B. 



— Raquinianus, d'Orhig. 



— cornucopia, Y. and B. 



— beterophyllus. Sow. 

 Beleranosepia (ink-bag and osselets). 



Plcurotomaria, subdecorata, Miinst. 



