APPENDIX. 835 



Ten yards above the Naughlon Coal. — From this horizon a per- 

 sistent shell bed in the Ilkeston district has yielded the following list : — 



C'arbonicola acuta (Sow.). 



„ acuta, var. rhomboidalis (Hind). 



,, aquilina (Sow.). 



„ nucularis (Hind). 



„ robusta (Sow.). 



■Naiadites modiolaris (Sow.). 

 Anthracomya modiolaris (Sow.). 



,, laevis, var. scotica (R. Eth., junr.). 



Carbonicola acuta and C. aquilina were the most abundant species. 



Naughton Coal. — It has not been possible to add to the list of fish 

 remains recorded by the Survey from the roof of this coal at the Kil- 

 burn Colliery, although the fish-bed has been found to occur on the 

 outcrop of the coal on Dale Moor, near Stanton. 



Dale Moor Rake. — Some fifty years ago the ' bottom balls ' of 

 this rake in the workings near Stanton yielded a large number of entire 

 fishes in an excellent state of preservation. A number of these, 

 including several type specimens, are preserved in the Museum of the 

 Geological Survey, in the British Museum, and in the Binney collection 

 at the Sedgwick Museum, Cambridge. 



The complete list is given below for the purpose of comparison with 

 the lists from other fish-beds higher in the sequence: — 



Ehizodopsis sauroides (Willrn.). 

 Coelacanthus elegans (Newb.). 

 Platysomus tenuistriatus (Traq.). 

 Elonichthys Aitheni (Traq.). 

 ,, Binneyi (Traq.). 

 Mesolepis Wardi (Young). 



„ microptera (Traq.). 



„ scalaris (Young). 



Alton Coal. — The marine bed roof of this coal contains fish remains, 

 both in the shale and in the pyritous nodules. Specimens have been 

 collected from the following localities — the trial sinking at the Oakwell 

 Colliery, Ilkeston, the abandoned colliery at Alton, and the outcrop of 

 the seam at the Bullbridge brick pit at Ambergate. 



The list, which is incomplete, includes the following: — 



Hoplonchus, sp. 



Ehizodopsis sauroides (Willm.). 

 Bhadinichthys monensis (Egert.). 

 Megalichthys intermedins (A. S. Woodw.). 



„ Hibberti (Agass.). 



Elonichthys Egertoni (Egert.). 



sp. 

 Coelacanthus (Newb.). 

 Acanthodes sp. 



"With the exception of the plants, the various lists of fossils recorded 

 above are summarised in the following two tables in order to bring out 

 more clearly the vertical range of each species and also the assemblage 

 of fossils characteristic of the chief fossil horizons. 



