WHiTEAVEsJ DEVONIAN FOSSILS OP MANITOBA, ETC. 287 



Sjiiri/erafimhriata, Nicholson. 1874. Pal. Prov. Out., p. 82. 



Not Spirifera Jhnliriaia, Morton. 1830. Am. Joiirn. Sc. and Arts, vol. XXXIX, p. 



149. 

 Spirifera Conradana, S. A. Miller. 188.3. Am. Pal. Foss., Second Ed., p. -298. 



1889. N. Am. (Jcol. and Pala;ont., p. .372. 



Monroe Point, Lake Manitoba, J. B. Tyrrell and J. F. Whiteaves, 

 1888 : one perfect but not very well preserved dorsal valve. A single 

 specimen of this species was also collected by Mr. J. B. Tyrrell or Mr. D. 

 B. Dowling in 1S89, at each of the following localities on or near Lake 

 Winnipegosis : in the southern portion of the lake at a small island off 

 Weston Point ; in the Stringocephalus zone at several exposures in the 

 eastern, south-western and western shore of Dawson Bay ; on two small 

 islands on the east side of the bay, and at the south end of Rowan 

 Island, on its west side ; also, in the Cuboides zone on the Red Deer River, 

 half a mile below the Lower Salt Spring. 



Spihifeba (Martinia) Richardsonii, Meek. 



Plate 37, fig. 7. 



Si)it'i/era (-Marfviia) Bichardsoni, ~Meek. 1868. Trans. Chicago Ac. 8c., vol. I, 



p. 104, pi. xiv, fig. 2. 



Lake Winnipegosis, at Point Brabant (two casts of the interior of ven- 

 tral valves), and at Devils Point (two specimens) ; also, in Dawson Bay at 

 a small point half a mile north of the mouth of Bell River (two speci- 

 mens) ; at the head of a small bay about three miles south of Point 

 Wilkins (several small specimens) ; and on the Red Deer River near the 

 Lower Salt Spring ; J. B. Tyrrell and D. B. Dowling, 1889. At each of 

 these localities the specimens collected are small and rarely exceed half 

 an inch in diameter. They are all a little longer than broad, nearly 

 smooth, with an undeveloped or very feebly developed mesial fold and 

 sinus. 



In 1888 Mr. Dowling collected numerous specimens of a small Spirifera, 

 which is probably referable to the present species, on the south-west side 

 of Dawson Bay, at the second point north of the Red Deer River. These 

 specimens (one of which is figured) are invariably hollow and imbedded 

 in a vesicular dolomite in such a way as to show the character of the 

 interior of the valves only, the spiral coils and hinge teeth being beauti- 

 fully preserved. The hinge teeth of the ventral valve are slightly curved 

 and diverge rapidly outward and forward. The shelly cones consist of 

 only five loosely coiled, separate and rather distant, apparently smooth 

 volutions, on each side. 



September, 1892. 3 



