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Cephalopoda 
Armenoceras richardsoni Stokes 
Locality. Koukjuak (Camp 11). 
Horizon. Upper Ordovician (Richmond). 
Cycloceras cf. clorus (Hall) 
Locality. Anderson headland. 
Horizon. Ordovician. 
cf. Endoceras n. sp. 
This species is put in the genus Endoceras with a query, not because 
the generic characters are indistinct but because the genus Endoceras and 
Vaginoceras appear to be indistinctly differentiated. 
Locality. Koukjuak (Camp 11). 
Horizon. Upper Ordovician or Silurian. 
Endoceras endosiphon 
Locality. Collected by Eskimo from south beach of Amadjuak lake. 
Horizon. Probably Ordovician. 
cf. Cyclendoceras sp. 
A poorly preserved fragment with an endosiphon. 
Locality. Collected by Eskimo from region of Markham bay. 
Horizon. Probably Ordovician. 
Orthoceras sp. 
Locality. Not given. 
Horizon. Doubtful. 
Nov. gen. n.sp. 
A straight Orthoceratite with septal funnels and siphuncle differing 
from species already described. 
Locality. Koukjuak (Camp 11). 
Horizon. Probably Upper Ordovician or Silurian. 
Aclinoceras sp. 
Locality. Koukjuak (Camp 11). 
Horizon. Upper Ordovician — probably Richmond. 
Cyrtoceras sp. 
Locality. Anderson headland. 
Horizon. Upper Ordovician or Silurian. 
Tripteroceras sp. 
A fragment but very similar to a Lake Winnipeg form. 
Locality. Koukjuak (Camp 11). 
Horizon. Upper Ordovician, probably Richmond. 
Huronia n. sp. 
Locality. Fossil island. 
Horizon. Silurian. 
