List of Figures in Text. 



Raja rhina 



Raja binociilata. 



Raja inornata, Raja binocidata. 



Raja inornata . 



Raja inornata . 



Raja stellulata . 



Sebastodes deani 



Sebastodes deatti 



Leptccna tncrassata 



LeptcBua incrassata 



Rafinesqninn champlainensis Ra^nnc 



Orthis ignicula Raymond . 



Valcourea strophomenoides Raymond 



Hebertella borealis (Billings) 



Hebertella vulgaris Raymond 



Hebertella vulgaris Raymond 



Hebertella bellarugosa (Conrad). 



Orthis acuminata Billings . 



Clitambonites multicostus Hudson 



Orthidium lamellosum Raymond 



Leperditia limatula Raymond . 



Eurychilina latimarginata Ra\'mond 



Schmidtella crassimarginata Ulrich 



Cephalosilurus fowleri 



Pygidium davisi 



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