PALEONTOLOGY OF ONTARIO. 127 



List of Devonian Protozoa. 



1. Astrseospongia Hamiltonensis, Meek and Worthen? (C.) 



2. Stromatopora tuberculata, N^ich. (C.) 



3. " perforata, Nick. (C.) 



4. " granulata, Mich. (C. <fe H.) 



5. " mammillata, Mich. (C. & H.) 



6. " concentrica, Goldfuss? (C.) 



II. CCELENTERATA. 



Of all tlie organic I'emains of the Devonian Rocks of Ontario, and 

 especially of tlie Corniferous Limestone, none are more conspicuoup 

 than the Corals, whether we take into consideration the vast number 

 of individuals or the variety of type which they exhibit. Many 

 parts of the Corniferoiis Limestone are almost wholly made up of 

 corals ; and as these are generally silicified, they weather out of the 

 calcareous matrix in the most beautiful manner, and can be obtained 

 in a state of exquisite preservation. Equally beautiful, if not more 

 so, are the corals which weather out in countless numbers from the 

 soft decomposing shales of the Hamilton Formation. Mr. Billings, 

 in the Memoir already alluded to, estimates the number of corals in 

 the Devonian Rocks of Canada "West as probably about eighty, and 

 of these he describes no less than fifty-four. Some of the most strik- 

 ing of these forms, such as the species of Phillipsastroia, have not 

 come under my notice in any portion of the Corniferous and Hamil- 

 ton Formations studied by me. I have, however, to record seventy- 

 one species of Corals, of which thirty-one belong to the Tabulata, five 

 are referable to the Tuhulosa, and thirty -five belong to the great 

 group of the Rugosa. The genera represented are twenty-one in 

 aumber, viz : Favosites, Michelinia, Alveolites, Fistidipora, Callopora, 

 Chcetetes, Syringopora, Striatopora, Trachypora, Aulopora, Micro- 

 cyclus, Zaphrentis, Blothrophyllum, Heliophyllum, Clisiophyllum, 

 BiphypJiylhim, Eridophyllum, Amplexus, Cystip)hylhim, Haimeo- 

 phyllum, and Petraia. Of the species, about twelve can be more or 

 less certainly identified with knowTi European species, viz : Favosites 

 Gothlandica, F. hemispherica, F. Forbesi, F. polymori^ha, F. duhia, 

 F. cervicornis, F. reticulata, Aulopora tubce/ormis, Dijjhyphyllum 

 gracile, Cystipliyllum vesiculosum, and Michelinia convexa. Besides 

 these, there are others very closely allied to European forms ; and 

 some which may perhaps turn out, on fuller investigation, to be 

 nothing more than varieties. 



