142 NOTES ON THE FOSSILS OF ONTARIO. 



77. Lept^na transversalis, Dalman. Niagara Limestone, Nia- 

 gara River. 



78. DisciNA tenuilamellata. {Ref- Orhicula tenuilamellafa. 

 Hall, Pal. N.Y., Yol. II., pi. liii., fig. 3.) Niagara Limestone, 

 Rockwood. 



79. Discina (O'RBICULOIdea) Forbesii, Davidson. A form very 

 nearly allied to this, if not identical vatli it. Niagara limestone, 

 Hamilton. 



80. LiNGULA lamellata, Hall. Niagara limestone, Hamilton. 

 8L Spirifera Niagarensis, Conrad. Niagara limestone, Niagaiu 



River. 



82. Orthis biporata, Schlotlieim. Niagara Limestone, Thorold. 



83. Phacops caudatus, Brongniart. Niagara Limestone, Hamilton- 



84. Calymene Blumenbachii, Brongniart. Niagara Limestone,, 

 Niagara River and Thorold. 



III. FOSSILS OF THE GUELPH FOEMATION. 



85. Stromatopora concentrica, Goldfuss. Yery abundant and 

 widely distributed, as well as attaining to a large size ; but so badly 

 preserved as to render it impossible to determine whether it really is 

 this species or not. 



Locality and Formation. — Guelph Formation, Elora, Gu.elph,. 

 Hespeler, Gait. 



86. Stromatopora ostiolata, Nicholson. {Ref. Annals of Natural 

 History, August, 1873). Guelph Formation, Guelph. 



87. Fa vosiTES polymorp HA, Goldfuss. Guelph Formation, Hespeler. 



88. Favosites venusta, Hall, {Ref. Astrocerium venust^im, Hall, 

 Pal. N.Y., Yol., II., pi. xxxiv. figs. la-i). Common in the Guelph 

 Formation at Hespeler and Eloi-a. 



89. Amplexus Yandelli, Edw. and Haime. Specimens of an 

 Am2)lexus which we cannot separate from the Devonian A. Yandelli, 

 occur, not infrequently, in the Guelph Formation at Hespeler and 

 Guelph. 



90. Amplexus, sp. An Am2jleoats of a slender, cylindrical, and 

 elongated form is. very common in the Guelph Formation at Hespeler, 

 Guelph and Elora. We have not been able to determine to what 

 species it belongs • but the same form occurs in the Niagara Lime- 

 stone at Thorold. 



