AMI01DEI 



33' 



Allolepidodus, Deeke ; Trias, Europe. Heterolepidotus, Eg. ; Ptycholepis, 

 Ag. ; Gaturus, Ag. (Fig. 309) ; Triassic and Jurassic, Europe. Callopterus, 



Fio. 308. 

 Eugnathuit rrthostomus, Ag. , Lower Jurassic, Dorsetshire ; restored. (After A. S Woodward.) 



Thiol. ; Osteorhachis, Eg. (Fig. 307) ; Eurycormus, Wagner ; Eugnathus, 

 Ag. (Fig. 308) ; Jurassic, Europe. NeorhomMepis, A. S. W. ; Jurassic 

 and Cretaceous, England. Lophrostomus, Eg. ; Cretaceous, England. 



FIG. 309. 



Caturus furcatus, Ag. ; Upper Jurassic, Bavaria ; restored, without scales. 

 (After A. S. Woodward.) 



Family PACHYCORMIDAE. They are similar in outward shape to the 

 last ; but the ethmoid and vomer combine to form a prominent rostrum 

 which separates the premaxillae, especially in Prototphyraena. The 



Fio. 310. 



Hypsocormus insignis, Wagner ; Upper Jurassic, Bavaria ; restored, without scales. 

 (After. A. S. Woodward.) 



branchiostegals become very numerous ; pointed teeth arm the jaws, 

 vomer, and splenial ; in Hypricarmtti there is a very large pair on the 

 last two bones. The fulcra are vestigial. The scales thin and rhombic, 



