1915] PALAEOZOIC FossILs FROM Hupson Bay. 81 
of pleural tubercles is the chief objection to ascribing our form to F£. 
punctatus. The specimen cannot be ascribed to E. levis, Anselm 
(E. arcticus, Salter), as the number of segments in the axis of the pygi- 
dium is much too great. 
Locality—Limestone rapids, Fawn river, District of Patricia, Ontario. 
Horizon—Silurian. 
No. 427 S. Royal Ontario Museum of Palaeontology. 
Ow 
