Geology of Coalbrook Dale. 



493 



Genus, Species, and Reference. 



Plate and Figure. 



Formations. 



Coal Measures. 





II 



i 



1 



5 



11 

 si 





H 



>.c; 



SB 



S 1 



^1 



33 



Ii 





ll 

 SI 



The numerals refer 

 to the Plates which 

 illustrate the memoir 



Cornulites serpularius (Schloth.) Silur. Syst 



' Tentaculites ornatus, Silur. Syst 



26. f. 5-9. 

 12. f 25. 

 19. f. 16. 



5. f. 2-6. 



XLI. f. 14. 

 XLI. f. 12, 13. 

 XLI. f. 10, 11. 



XLI. f. 15. 



* 



* 











... 











, innnlntni'; (f^rhlnfh 1 minr ^ir-rf- 



PISCES. 

 Gyracanthus formosus.'^^foss. vol.iii. p. 17 



Hybodus'* ? Jgass. vol. iii. p. 41 



Megalichthys Hibbertii,'' Agass. vol. ii. p. 87 



Holoptychius Hibbertii,' Agass. MS 









• Bones of the head and scales. ' A tooth, see Plate XLI. fig. 14. 



' A spine and tooth, represented in Plate XLI. fig. 12, 13, are assigned to this genus provisionally, as they may possibly belong to the 

 Coal Measure, genus Diplodus, the characters of which have not yet been published by M. Agassiz. 



■• Bones of head, see ante, p. 443, and PI. XLI. fig. 10, 11. 



s The spine given in PI. XLI. fig. 15, is placed with doubts in this genus, its state of preservation not being good. The spine is round 

 but compressed, and is aiined with two opposite rows of teeth or tubercles inclined downwards. There are no traces of the curve men- 

 tioned by M. Agassiz as one of the distiuguisliing characters of the genus. 



Remains of Gyracanthus, Hybodus ? and Megalichthys are found also in the Chance Penneystone, Top coal 

 bass, and Flint coal bass. 



3s2 



