92 CONTRIBUTIONS TO CANADIAN rALylOONToLOGY. 



septatum, Billings, are enumerated as occui'ring in the Hamilton For- 

 mation, the latter being then described for the first time. To these 

 should jjrobabl)' be added the Cystiphyllmii Americanum of Kdwards and 

 Haime, which is one of the commonest fossils of this formation, 

 although by some inadvertence Mr. Billings omitted to .^ate from what 

 particular horizon the specimens he referred to wei'O obtained. 



in another paper by Mr. Billings, ' On the Devonian Fossils of 

 Canada West," published in the Canadian Journal tor May 1860, nine 

 species of corals, six of which had not previously been desciibed, and 

 fifteen of brachiopoda, two which were here named and characterized 

 for the first time, are enumerated as having been collected in the 

 Hamilton Formation. 



Professor II. A. IS^icholson's " Eeport upon the Palai-ontology of the 

 Pi'ovince of (Jntario," published at Toronto in 1874, which is exclu- 

 sive!)' devoted to the organic remains of the Devonian rocks, contains 

 the most exhaustive and indeed the only- list that had appeared up to 

 that date of the fossils of the Corniferous and Hamilton Formations of 

 that province. The number of species fi'om the latter formation 

 enumerated in this list is fifty-six, manj' of which were described for 

 the fij-st time in this report, but seventeen out of the fifty-six are 

 identical with forms that had previously been recorded by Mr. 

 Billings as occurring in the same formation. 



In his Eeport upon the Paleontology of the Province of Ontario, 

 published at Toronto in 1875, Professoi- Nicholson a<lds fifteen species 

 to the fauna of the Hamilton Formation of that province, two out of the 

 seventeen there mentioned as belonging to it having been previously 

 recognized or described by Mr. Billings. 



Due allowance being made for names that are mentioned by both of 

 these paleontologists, the total number of species recorded in these 

 tour publications from the formation and province in question is 

 eighty-one, and since 18*75 about twenty additional species have been 

 described or identified by K. Billings, Drs. Nicholson, Carl Eominger 

 and G, J. Hinde, Prof H. Montgomery and IMessrs. Etheridge and 

 Carpenter, thus bringing the general total, to the cbjse of 1886, up to 

 a little (;ver one hundred. 



In addition to these the Museum of the Geological Surve}- of Canada 

 contains nearly forty species of fbssils, most of which have not pre- 

 viously been recognized as occurring in the Hamilton Formation of 

 Ontario, or at least not in any Canadian publication. With the excep- 

 tion of Spirifera subdecussata and Balmanites Selena, they are all from 

 the townships of Bosanquet or West Williams, and a few of them 

 appear to be undescribed. Some of these fossils were collected by Mr. 

 James Eichardson in 1859 and by Mr. .Johnson Pettit in 1868, but by 



