189 



Inmost Island, Lake Winnipeg, D. B. Dowling and L. M. Lambe, 

 1890 : a well preserved cast of the interior of the shell of a small speci- 

 men, which is about eleven millimetres in its longest diameter. A badly 

 preserved but otherwise similar cast was collected by Mr. Dowling, in 

 1891, on the west shore of Lake Winnipeg, north of the Saskatchewan 

 and opposite the north end of Selkirk Island. 



Salpingostoma BuBLLii, Whitfield. (Sp.) 



Bucania Budlii, Whitfield 1878. Ann. Rep. Geol. Surv. Wiucons. for 



1877, p. 76. 

 Bucania ( Tremanotus ?) Budlii, "VfhitfielA . .1?:9}2. Geol. Wiscons., vol. IV., p. 224, pi. 



6, figs. 12-14. 

 Salpingostoma Buellii, TJlrich and Scofield . . 1897. Geol. Minn. , Final Rep. , vol. III., 



pt. 2, p. 900, pi. 67, figs. 34-37, and (?) 38. 



Lower Fort Garry, Dr. R. Bell, 1880, one specimen; and Commissioners 

 (formerly called Cranberry) Island, Lake Winnipeg, D. B. Dowling, 1890, 

 one specimen ; both of which are badly preserved casts of the interior 

 of the shell. 



CoNEADELLA. (Spccics Uncertain.) 



A single specimen of a small Conradella, which the writer once thought 

 could be identified with C. compressa (the Phragmolites compressus of 

 Conrad), but which is much too imperfect to be satisfactorily compared 

 with the nearly related and very critical species recently described by 

 XJlrich and Scofield in the second part of the third volume of the Final 

 Report of the Geology of Minnesota, — was collected at Lower Fort Garry 

 by Dr. R. Bell in 1880. 



Pleurotomaria muralis, D. D. Owen. 



Pleurotomaria muralis, Owen 1852. Rep. Geol. Surv. Wiscons., lovira and 



Minn., p. 581, pi. 2, fig. 6. 

 Whiteaves 1893. Canad. Rec. Sc, vol. V., p. 319. 



" Specific characters. — Obtusely conical, convolutions five to six, with 

 nearly vertical sides, like a spiral wall ; upper surface of the whorls 

 deeply channelled and doubly carinated ; undulating striae, transverse to 

 the convolutions. Height about two-thirds of thfe widlh. 



"From the Magnesian limestones (F. 3) of Red River of the North," at 

 Lower Fort Garry. Owen. 



P. muralis appears to have been based upon a single specimen with the 

 whole of the umbilical side covered by the matrix, so that only the 

 characters of the apical side are known. A natural mould of the exterior, 

 with part of the test adherent thereto, of the apical side of a specimen 



