FROM THE YORKSHIRE CANNEL COAL. 433 



shall be designated Coelacanthus Tingleyensis, consist in the method of attachment of 

 the rays of the dorsal and caudal fins to the spinous processes of the vertebrae, in the 

 larger number of the fin-rays, and in their extremities being articulated ; the orna- 

 mentation of the scales and exposed bones of the head consists partly of ridges and also 

 of minute tubercles ; and they also differ in the form of the scales. 



DESCRIPTION OF THE PLATES. 

 Plate XLVI. 



Coelacanthus Tingleyensis, Davis (nat. size). 



Plate XLVII. 



Fig. 1 . Coelacanthus Tingleyensis, anterior portion of the body, exhibiting the under surface of the head 



(nat. size). 

 Figs. 2-13. Detached bones of the head. 



Plate XLVIII. 



Fig. 1. Coelacanthus Tingleyensis. Thoracic arch with attachment of the pectoral fins (nat. size). 

 Fig. 2. Caudal fin of same (nat. size) . 



Plate XLIX. 



Fig. 1. Restoration of C. Tingleyensis (half nat. size). 

 Fig. 2. Upper surface of head, restored. 

 Fig. 3. Scales, magnified. 



