98 GUIDE TO THE FOSSIL REPTILES, AMPHIBIANS, FISHES. 
Table-case 
27 . 
Wall-case 
10 . 
Table-case 
27 . 
from the decomposing body leading to a concentration of 
mineral matter from the surrounding clay. 
The Dercetidse are eel-shaped Cretaceous fishes, probably 
related to the deep-sea Halosauridae, but with longitudinal 
rows of scutes or prickles in the skin. One specimen of 
Fig. 107.—Restoration of Eurypholis boissieri, from the Upper Cretaceous 
of Hakel, Mount Lebanon ; one-half nat. size. (After Pictet and 
Humbert. Table-case 27.) 
Leptotrachelus , from the Upper Cretaceous of Mount Lebanon, 
in Table-case 27, shows a large fish in its interior, evidently 
swallowed, and proving the possession of a distensible 
stomach. 
The Enchodontidse of the Cretaceous period are also 
closely allied to modern deep-sea fishes, but to the Scopeloid 
group. They are remarkable for their very powerful teeth. 
The best-preserved skeletons are those of Eurypholis (Fig. 
107) and Enchodus, from the Upper Cretaceous of Mount 
