4 CONTRIBUTIONS TO CANADIAN PALiBONTOLOGy. 



F. GotMandica occurs at numerous localities in the Niagara, Guelph 

 and Lower Helderberg formations, in divisions 2, 3 and 4 of the Anti- 

 costi group and in rocks of supposed Hudson River age at Stony Mountain, 

 Manitoba. The specimens in the collection are from the following 

 localities— in the Niagara from Thorold, Ont., E. Billings ; Rockwood, 

 Ont., R. Bell, 1861; Owen Sound, Ont., J. Townsend, 1874; Grand 

 Manitoulin and Cockburn Islands, Lake Huron, R. Bell, 1866 ; Drum- 

 mond Island, Lake Huron ; at the north end of Lake Temisoaming, Que., 

 R. Bell, 1877 and A. E. Barlow, 1883, 1884 : in the Guelph from Gait, 

 Ont., R. Bell, 1861 : in the Lower Helderberg from I'Anse au Gascon, 

 Bale des Chaleurs, R. Bell, 1862 ; I'Anse a la Vieille and I'Anse a la Barbe, 

 Bale des Chaleurs : in divisions 2, 3 and 4 of the Anticosti group from 

 various localities, J. Richardson, 1856 and Professor John Macoun, 1883. 

 The specimens from Stony Mountain were collected by T. C. Weston in 

 1884. Two small specimens were also collected on the east side of Mans- 

 field Island, Hudson Bay by R. Bell in 1884 from rocks that have been 

 doubtfully referred to the Niagara. A number of specimens were obtained 

 by A. P. Low at Limestone Rapids on the Fawn branch of the Severn 

 River in 1886 in rocks which are supposed to be " not older than the 

 Galena and may be as new as the Niagara." * 



In 1894 specimens were obtained at Fort Churchill, Hudson Bay, by 

 J. B. Tyrrell, in rocks that have been referred to as of Cambro-Silurian 

 age. 



In addition to the above localities F. GotMandica was collected in 

 rocks of Silurian age at Davis Point, Lake Manitoba, by J. B. Tyrrell, 

 1888, and at the west side of Cedar Lake, at Cross Lake Rapids and at 

 Grand Rapids, Saskatchewan River near its mouth by J. B. Tyrrell, 

 1890 ; also at a slightly lower geological horizon, a few miles south of 

 Long Point (station 1030), Lake Winnipeg by D. B. Dowling, 1891. 



Favosites aspera, d'Orbigny. 

 Plate I., fig. 2. ■ 



Favosites cdveolaris, Lonsdale. 1839. Murch. Sil. Sys., p. 681, pi. 15 bis, figs. 1, la., 16- 



and 2, 2a. 

 Favosites [aspera, d'Orbigny. 1850. Prodr. de Paleont., vol. I., p. 49. 



Ti If Milne-Edwards and Haime. 1851. Polyp. Foss. des Terr. PalEeoz., 



p. 234. 

 ir 11 MUne-Edwards and Haime. 1855. Brit. Foss. Corals, p. 257, pi. LX., 



figs. 3, 3(1. 

 1. IP McCoy. 1855. Brit. Palseoz. Foss., p. 20. 



* Geological Survey of Canada, Annual Report, 1886, new series, p. 18 of Mr. Low'a 

 report. 



