92 GUIDE TO THE FOSSIL REPTILES, AMPHIBIANS, FISHES. 
Wall-cases The Eugnathidse are the rhombic-scaled forerunners of 
12 , 13 . the modern Amia, and range from the Upper Trias or 
Ta i9 e- 20 SeS ^ 8e ^ c the Chalk. They are predaceous fishes with a 
* ‘ large mouth and conical teeth. Both the thick-scaled Eugna- 
thus (Fig. 98) and the thin-scaled Caturus (Fig. 99) range 
Fig. 98.—Restoration of Eugnathus orthostomus, from the Lower Lias of 
Lyme Regis: about one-seventh nat. size. (After A. S. Woodward. 
Wall-case 12.) 
throughout the Jurassic ; and there are allied fishes connecting 
these with the Amiidse, which are first typically represented 
in the Upper Jurassic. Megalurus from the German and 
French Lithographic Stone only differs from Amia in its 
Table-case shorter dorsal fin. In the Lower Tertiaries Amia itself is as 
20, abundantly represented in Europe as in North America. 
Fig. 99. —Restoration of Caturus furcatus , scales omitted, from the Upper 
Jurassic Lithographic Stone of Bavaria; about one-eleventh nat. size. 
(After A. S. Woodward. Wall-case 13.) 
Good specimens are shown from the Lower Miocene of France, 
and there are fragments from the Hampshire Basin (Table- 
case 20 ). 
Wall-case The Pachycormidse are a family of Amioids which curiously 
P able^cases m ^ m ^ c the m °dern sword-fishes, and range throughout the 
20 , 21. Jurassic and Cretaceous periods. They are typically repre¬ 
sented by Pachycormus (Upper Lias), Hypsocormus (Upper 
