122 THE BRITISH REPTILES. 



Ornithocheirus denticulatus (Cambridge Greeftsand). 



Ornithocheirus diomedius (Chalk). 



Ornithocheirus enchorhynchus (Cambridge Green- 

 sand). 



Ornithocheirus eurygnathus (Cambridge Greensand). 



Ornithocheirus fittoni (Cambridge Greensand). 



Ornithocheirus giganteus (Lower Chalk). 



Ornithocheirus huxleyi (Cambridge Greensand). 



Ornithocheirus machaerorhynchus (Cambridge Green- 

 sand). 



Ornithocheirus microdon (Cambridge Greensand). 



Ornithocheirus nasutus (Cambridge Greensand). 



Ornithochierus nobilis (Wealden). 



Ornithocheirus oweni (Cambridge Greensand). 



Ornithocheirus oxyrhinus (Cambridge Greensand). 



Ornithocheirus platystomus (Cambridge Greensand). 



Ornithocheirus polyodori (Cambridge Greensand). 



Ornithocheirus reedi (Cambridge Greensand). 



Ornithocheirus scaphorhynchus (Cambridge Green- 

 sand). 



Ornithocheirus sedgwicki (Cambridge Greensand). 



Ornithocheirus simus (Cambridge Greeensand). 



Ornithocheirus tenuirostris (Cambridge Greensand). 



Ornithocheirus xyphorhynchus (Cambridge Green- 

 sand). 



Doratorhynchus longicollis (Lower Chalk). 



Scaphognathus purdoni (Upper Lias). 



Rhamphocepbalus bucklandi (Stonesfield Slate). 



Rhamphocephalus depressirostris (Stonesfield Slate). 



Rhamphocephalus prestwichi (Stonesfield Slate). 



Dimorphodon macroynx (Lower Lias). 



Pterodactylus pleydelli (Kimeridge Clay). 



Pterodactylus sagittirostris (Wealden). 



PTERANODONTIA. 



Ornithostoma (Cambridge Greensand). 



CHELONIA. 



TRIONYCHID&. 



Trionyx barbarae (Upper Eocene). 

 Trionyx bowerbanki (Middle Eocene). 

 Trionyx circumsulcatus (Upper Eocene). 

 Trionyx henrici (Upper Eocene). 

 Trionyx incrassatus (Upper Eocene). 

 Trionyx planus (Upper Eocene). 

 Trionyx pustulatus (Lower Eocene). 

 Trionyx rivosus (Upper Eocene). 



