DAVIS : FOSSIL FISH EEMAINS. 
43 
and the fish-remains contained in its strata were doubtless those 
of the fislies which inhabited those deep waters, but the Old Red 
Sandstone formations were accumulated in much sljallower water, 
probably in many cases formed the shore during the deposition of 
the Limestone in the deep waters beyond, the fishes found fossil 
in those beds^ may naturally be expected to differ in character 
from those of the deep water. The Coal measures again are the 
result of deposits of sand and mud brought from the land by 
streams either to an estuary of the sea or inland lakes, in either 
case, the piscine fauna may be expected to exhibit peculiarities 
totally different to those of the fauna of the Limestone. 
It is proposed after giving the list of fishes found in the 
Yorkshire Limestone series which immediately follows, to consider 
the relationship they appear to possess with other fossil forms, 
and their zoological position with regard to allied fishes now 
existing, and to draw such inferences therefrom as may seem 
desirable. 
Cladacanthus paradoxus, Agass. 
Physonemus arcuatus, Agass. . 
Cladodus mirabilis, Agass. 
„ striatus, Agass. 
„ basalis, Agass. 
„ Hornei, Davis. 
., mucronatus, Davis. 
Pristicladodus dentatus, McCoy, 
Goughi, McCoy. ., 
Glyphanodus tenuis, Davis. 
Orodus ramosus, Agass 
„ Reedi, Davis 
Lophodus reticulatus, Davis. 
DicUtodus scitulus, Davis. 
CochHodus contortus, Agass. 
Deltodus aliformis, Agass. 
Deltoptychius acutas, Agass. 
Psephodus magnus, Agass. 
Pcecilodus Jonesii, Agass. 
„ sp., nov. 
Pleurodus Woodi, Davis 
Psammodus rugosus, Agass. 
Leyburn, 
Settle 
Kettlewell. 
Leyburn. 
E^ichmond. 
Wensleydale. 
55 
Leyburn, 
55 
Settle. 
Leyburn. 
5) 
Leyburn, Richmond. 
Settle. 
