Bony Pikes
a recent fish, genus lepidosteus, of great interest from its being of the order ganoidei, of which nearly all the species are extinct. It belongs to the sub-order holosteæ, and the family lepidosteidæ. Among other peculiarities the bony pikes have the antique pattern of heterocercal tail, so common BOOK their specific Latin name imports, on the Bass rock, in the Frith of Forth, Scotland. They exist also in other places.