from The Century Dictionary and Cyclopedia
- n. A genus of extinct dipnoan fishes of the subclass Dipnoi and family Ctenodontidæ, characterized by triangular upper dental plates with straight and crenulated radiating ridges, a long dorsal fin continuous with the caudal or tail fin, small and separate anal fin, and very thin cycloid scales marked with delicate radiating striæ. It occurs in the Old Red Sandstone (Devonian) of Europe and Canada.
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