﻿136 ICHTHYODORULITES. 



1887. Oracanthus minor, L. Agassiz, ibid. p. 16, pi. iii. figs. 5, 6. 



[Bristol Museum.] 

 1843. Oracanthus confluens, L. Agassiz, ibid. p. 177 (name only). 

 1855. Oracanthus milleri, F. M'Coy, Brit. Palseoz. Foss. p. 634. 



1877. Oracanthus milleri, R. Etheridge, Jun., Geol. Mag. [2] vol. iv. 

 p. 307, pi. xiii. figs. 4-6. 



1878. Oracanthus milleri, L. G. de Koninck, Faune Oalc. Carb. Belg. 

 p. 69, pi. v. fig. 10. 



1883. Oracanthus milleri, J. W. Davis, Trans. Roy. Dublin Soc. [2] 

 vol. i. p. 525, pi. lxiii. figs. 1-4, pi. lxiv., pi. lxv. figs. 3, 4 (? also 

 pi. lxii.). 



Type. Bristol Museum. 



The type species. 



Form. Sf Loc. Lower Carboniferous Limestone : Gloucestershire, 

 Lanarkshire, and Armagh. Upper Carboniferous Limestone : Vise, 

 Belgium. 



28857. Imperfect spine, originally measuring 0*3 in length, and 

 0*125 across the base ; Bristol. Purchased, 1854. 



22665. Imperfect similar spine, with an attenuated smooth terminal 

 portion, and two fragments ; Bristol. Purchased, 1848. 



P. 2241. Portion of similar spine free from matrix; Bristol. 



Egerton Coll. 



P. 3125-6, P. 3130. Imperfect large spine, and two fragments; 

 Bristol. Enniskillen Coll. 



P. 3128. Smaller specimen, with one narrow face broken away, 

 and the boundary of the base much obscured on one side ; 

 figured by J. W. Davis, loc. cit. pi. lxiv. fig. 1 ; Bristol. 



EnnisTcillen Coll. 



34983. Portion of a very small spine ; Bristol. Purchased, 1860. 



P. 2873-5. Small broad spines figured by J. W. Davis, loc. cit. 

 pi. lxiii. figs. 1-3 ; Armagh. Enniskillen Coll. 



P. 3131. More imperfect similar spine; .Armagh. Enniskillen Coll. 



P. 3129. Imperfect more elongated spine ; Armagh. 



EnnisTcillen Coll. 



P. 3132-3. Five terminal extremities of spines, and three fragments ; 

 Armagh. Enniskillen Coll. 



P. 3135. Long slender dermal plate, with spatulate extremity, de- 

 scribed and figured by J. W. Davis, loc. cit. p. 529, pi. lxv. 

 fig. 3 ; Armagh. Enniskillen Coll. 



