THE SAW-FISH. (Tristis antiquorum.)

This fish is found in the European and Atlantic seas. Its body is flattened anteriorly with four or five branchial openings below on each side; two spiracles behind the eyes; no anal fin; the head prolonged into a depressed bony beak, with strong pointed spines on each side; the lips are rough and sharp like a file, supplying the place of teeth. With its formidable weapon, which resembles a toothed saw, this fish attacks the largest whales, and inflicts very severe wounds. The colour of its body is of a greyish brown above, and paler below; its length about fifteen feet, the saw being about a third of the whole.