276 



for 1886, New Series, volume II. In that publication it is stated that 

 " the limestones of the Severn and Fawn rivers, as roughly determined 

 from the fossils collected, are not older than the Galena, and may be as new 

 as the Niagara, more investigation is, however, required to fix their precise 

 horizon." Later, in 1899,in an Address by the writer before Section E. of the 

 American Association for the Advancement of Science at Columbus, Ohio, 

 these rocks were stated to be possibly of Devonian age, on the evidence 

 in them of a fragment that was inadvertently referred to Sphwrospongia 

 tessellata. But, it has since been clear that this fragment is part of a 

 specimen of a species of Eeceptaculites, and that the fossils at Limestone 

 Rapid are of the same age as those already enumerated or described 

 from the Attawapiskat and Ekwan rivers. 



SPONGI^. 



Receptaculites, sp. indet. 



A fragment which has been inadvertently and erroneously recorded ks 

 part of a specimen of Sphcerospongia tessellata, in " Contributions to 

 Canadian Palaeontology", vol. I, p. 259, as well as in the Address at 

 Columbus, — though its plates are clearly square, whereas most of those 

 of Sphmrospongia are distinctly hexagonal. 



ANTHOZOA. 



Hexacoealla. 

 Favosites Gothlandicus, Lamarck. 

 Several specimens (Lambe). 



Alveolites Niagarensis, Rominger. 



Alveolites Niagarensis, Rominger. 1876. Geo!. Surv. Mich. , Fossil Corals, p. 39, pi. 16, 

 figs. 1 & 2 ; but not A. Niagarensis. Nicholson, 1875, which is ap- 

 parently not a true Alveolites. 

 " " Lambe. 1899. Contr. Canad. Palseont., vol. Ill, pt. 2, p. 23. 



One specimen (Lambe). 



HYDROZOA. 



Stbomatoporid*, genus and species uncertain. 

 One specimen. 



