wMlTEAVEsJ FOSSILS OF HAMILTON FORMATION OP ONTARIO. 365 



Rev. Hector Currie in 1880, by the Rev. J. M. Goodwillie in 1882, by 

 Dr. H. M. Ami in 1883, and by the writer in 1889. So far as the writer 

 is aware, it is the first species that has been recognized as occurring in 

 rocks of Devonian age. It is easily distinguished by its very pecuhar 

 surface ornamentation, which, although rather difficult to describe 

 adequately in words, is well shown by figure 3«. 



ZOANTHARIA. 



(Tetracoralla, Hteckel : = Rugosa, Edwards and Haime.) 



Heliophyllum juvene, Rominger. (Sp.) 



Ci/atkophuUmnjuvene, Rominger. 187IJ. (4eol. Surv. Mich., Fossil Corals, p. 100, pi. 



35, upper row, the three smaller specimens on the right side of 



the plate. 

 Mcliojthplhmi Juiriic, Calvin. 1888. Amer. Geologist, vol. I., p. 83. 



" Widder, Canada West.'' " A very constant form found in associa- 

 tion with Heliophylhrni Halli, resembling it in all particulars, but in all 

 proportions smaller.'' Rominger. The figures of these two forms, in tlie 

 Fossil Corals of Michigan, do not impress one with their distinctness. 

 Professor Calvin says (^op. cit.) that i/^. juvene is found in the "Middle 

 division of the Hamilton group on the Riviere aux Sables." 



Blothrophyllum conatum. Hall. (Sp.) 



Ciiathophylhiin conatuni. Hall. 1876. lUustr. Devonian Foss,, pi. 31, figs. 1-14. 



Mr. Sohuohert has collected several specimens of a coral, which he 

 has identified with this species and referred to the genus Blotlirophylhnn, 

 from the " Middle third of the section," near Thedford and at Bart- 

 lett's Mills. These are No. 20,603 of the United States National 

 'Museum Catalogue of Invertebrate Fossils. 



Phillipsastr.ba Verneuili, Edwards and Haime. 



Phillipmstrcea Verneuili, Edw. and Haime. 18.51. Mon. Polyp. Foss. Terr. Palaeoz., 

 p. 447, pi. 10, fig. 5, 

 Billings. 18.59. Canad. Journ., N. S., vol. IV., p. 127, fig. 3 4 

 Billings. 1863. Geol. Canada, p. 305, fig. 363. 



In 1 895 Mr. Schuchert succeeded in finding one good specimen of this 

 species, which is so common in the Corniferous limestone of Ontario, in 

 the " Middle third of the section " at Bartlett's Mills. 



