The head of this fish was flat, but rounded in front, and the anterior part of its body was plated with bony, angular scales; it had no teeth, its pectoral fins were large, and of tail there was none. The animal belonged to the same order as the sturgeon, but differed from that fish in many essential particulars. After a short examination my uncle pronounced his opinion.

“This fish belongs to an extinct family, of which only fossil traces are found in the Devonian formations.”

“What!” I cried. “Have we taken alive an inhabitant of the seas of primitive ages?”