86 GUIDE TO THE FOSSIL REPTILES, AMPHIBIANS, FISHES. 
Wall-case 
8 . 
Table-case 
16 . 
Table-case 
16 . 
the upper lobe of the tail is much shortened and the rays of 
the dorsal and anal fins are nearly as few as their supporting 
cartilages. They are therefore intermediate between the 
Fig. 91.—Restoration of Eurynotus crenatus, from the Lower Carboniferous 
o£ Scotland; about one-quarter nat. size. (After R. H. Traquair. 
Table-case 15.) 
Chondrostei and the next higher sub-order of fishes. They 
are represented by Catopterus from North America, and by 
Didyopyge from Europe, North America, and Australia. 
Fig. 92.—Restoration of Platysomus striatus, from the Upper Permian of 
Germany and N. England; about one-quarter nat. size. (After R.~H. 
Traquair. Table-case 15 and Wall-case 8.) 
The Triassic and Liassic Belonorhynchidse seem to be 
elongated and degenerate Chondrosteans. As shown by 
Belonorhynchus, of which good specimens are exhibited in 
