REVISION OF SPECIES REFERRED TO GENUS BATHYTJRUS 
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Leiostegium breviceps, (Billings). 
Bathyurus hreviceps , Billings, 1865. Palaeozoic Fossils of Can- 
ada, Vol. 1, p. 262, fig. 246. 
Differs from the preceding in having a shorter and less quad- 
rate glabella. Found at horizon N, Table head, Newfoundland. 
24353—5 
