386 WELLBURN I FISH FAUNA OF LOWER CARBONIFEROUS ROCKS. 
Syn.: 0. ornatus Davis. 
Teeth : Brit. Mus. 
Form and Loc: Carbonif. limestones, Wensleydale and 
Richmond. 
Genus Diclitodus Davis, Trans. Roy. Dubhn Soc, vol. i., 
1883, p. 410. 
D. scitulus Davis, Quart. Jour. Geol. Soc, vol. xl., p. 023. 
Imperfect Teeth : York and Brit. Mus. 
Form and Loc: Carbonif. limestones, Wensleydale and 
Richmond. 
ICHTHYODORULITES. 
Genus Erismacanthus M'Coy, Ann. Mag. Nat. Hist., vol. ii., 
p. 118, 1848. 
E. Jonesi M'Coy, Lc, p. 119. 
Syn.: Cladocanthus paradoxus Davis, I.e., p. 617. 
Spines (olim. Capt. Jones' coll.). 
Form and Loc: Carbonif. limestones, Wensleydale. 
Genus Physonemus M'Coy, I.e., p. 117. 
P. hamatus Agassiz, Pois. Foss., vol. iii., p, 9. 
Spines : Brit, and Bristol Mus. 
Form and Loc: Carbonif. limestones, Wensleydale. 
Genus Comphacanthus ? Davis, ibid., p. 618.* 
C. acutus ? Davis, I.e., p. 618. 
Spine : York Mus. 
Form and Loc: Carbonif. limestones, Wensleydale. 
Incert^ Sedis. 
Genus Echinodus Davis, ibid., p. 631. 
B. paradoxus Davis, I.e., p. 631. 
Dermal Fossil : York Mus. 
Form and Loc: Carbonif. limestones, Wensleydale. 
* This genus and sp. probably founded on an abraded spine of another 
species. 
