WHITEAVE8.] DEVONIAN FOSSILS OF MANITOBA, ETC. 285 



(S.) Orthothetes Chemungensis, Conrad. (Sp.) 



Strophomena Chemtmijtnxis, Conrad. 1842. Joiirn. Acad. Nat. Sc. Phil., vol. VIII, 



p. 257. 

 hifun-ata, Hall. 1842. Geol. Rep. Fourth Distr. N. York, p. 266, 



fig. 2. 

 arcto.it)-iala. Hall. 1842. Ibid., p. 266, fig. .3. 

 jKctinacea, Hall. 1842. Ibid., p. 266, fig. 4. 

 Orthis perversa, Hall. 1857. Tenth Reg. Rep. N York St. Cab. Nat. Hist., p. 



137. 

 " inequalis, Hall. 1858. Geol. Surv. Iowa, vol. I, pt. 2, p. 490, pi. ii, figs, 6, 



a-c. 

 " pravus, Hall. 1858. lb., p. 490. 

 Sireptorhynchui Pandora, Billings. 1860. Canad. Journ. , N. S., vol. V, p. 266, 



figs. 12 and 13; and Geol. Canada, 1863, p. 369, fig. 

 384. 

 Orthixiiia ari:to«triala. Hall. 1860. Thirteenth Reg. Rep. N. York St. Cab. Nat. 



Hist., p. 80. 

 altervata. Hall. I860. lb., p. 81. 

 Streptorhynehus Ghemuncjendx, Hall. 1867. Pal. St. N. York, vol. IV, p. 67, pis. iv, 



ix and x. 

 " " " (Var. A.) Slreptorhyiichun Pandora, Billings. 



" " " (Var. B.) S. arctostriata, Hall. 



" *' '* {Var. C. ) S, perversa. Hall. 



" " " (Var. I). ) S. peclinacea. Hall. 



Streptorhynrhm Pandora, Nicholson. 1874. Pal. Prov. Ontario, p. 70. 

 Hemiproniles ChemungensU, var. arctostriata. Meek. 1877. Geol. Expl. Fortieth 



Par., vol. IV, p. 117, pi. xiii, figs. 7, 16. 

 Streptorhynchiis Chemungensis, Walcott. 1884. Pal. Eureka distr. Nevada, p. 



117, pi. xiii, figs. 7, 16. 

 Orthothetes Chemungensis, Hall. 1892. Pal. St. N.Y^, vol. VIII, pt. 1, p. 2.55. 



Devils Point, Lake Winnipegosis, in the lowest beds of the Middle 

 Devonian (six specimens) ; on the east side of Dawson Bay, Lake Winni- 

 pegosis, in the Stringocephalus zone, at Whiteaves' Point (two specimens), 

 and on a small island about two miles north of this point (two specimens) ; 

 J. B. Tyrrell, LS89. 



According to Mr. C. D. Walcott (op. cit.) in the State of New York 

 this species " ranges from the Upper Helderberg up into the Chemung 

 group, and in the Eureka district " of Nevada "from the base to the 

 summit of the Devonian limestone." 



Sthophodonta arcuata, Hall. 



Strophodonta arcuata. Hall. 1858. Geol. Surv. Iowa, vol. I, pt 2, p. 492, pi. iii, figs. 

 1 a, b, c, and 2 a, b, e, f. 



Lake Winnipegosis, on a small island at the extreme southern end of 

 the lake, (one specimen), and on the east side of Dawson Bay, on a small 



