APPENDIX t. 41 C 



greatest diameter. The Ilkenus from this locality is too imper- 

 fect for the species to be identified with much certainty, but if 

 not actually identical with I. latidorsatus, it appears to be very 

 closely allied to it. 



2. From Limestone Eapids 100 Miles up the Nelson Eiver. 

 Leptozna sericea, Sowerby. Not uncommon. 



Strophomena tenuistriata, Hall. One specimen. According to Davidson, 

 S. tenuistriata, Hall, is merely a variety of S. rhomboidalis, 

 Wilckins. 



Strophomena filitexta, Hall. Several detached valves. 



Strophomena subtenta, Conrad. A single valve. 



Bhynchonella Anticostiensis f Billings. Two imperfect, badly preserved 

 and small examples of a species of Bhynchonella, apparently 

 identical with some larger and more perfect casts from the 

 south-west shores of Lake Winnipeg, in the collection of the 

 Survey, which have been identified by the writer with the JR. 

 Anticostiensis. 



Murchisonia bellicincta, Hall. (=M. major, Hall.) A single large cast, 

 which corresponds fairly well with the figures and description 

 of this species. 



Asaphus megistos ? Locke. A cast of the pygidium only. 



3. From " First Birch Brook," Nelson Eiver. 

 Strophomena alternata, Conrad. One valve. 

 Ecculiomphalus, Nov. sp. A single specimen. 



4. From the Second and Third Limestone Eapids op the Nelson 



Eiver. 



Receptaculites Oweni, Hall. Several fragments. 



Halysites catenularia, Linnaeus. According to Dr. Bell this well-known 

 species is quite common at this locality. 



Eridophyllum, Nov, sp, A single fragment. The same species was 

 collected by Dr. Bell at Fort Churchill, but in loose pieces of 

 rock, and there is a fine specimen of it in the Museum of the 

 Survey, from Stone Fort, Manitoba. 



