Note 57 — NOTES ON CERTAIN FISHES AND MARINE ANIMALS FOUND IN NORFOLK.

So great is the variation in the snout of the Sturgeon, that Dr. Parnell in his excellent essay on "The Fishes of the District of the Forth," describes the Sharp-nosed Sturgeon as a distinct species under the name of Acipenser sturio, and the broad-nosed form he calls A. latirostris. His views, however, have not been generally accepted, and only one British species is recognised. The Sharp-nosed variety has been taken here, but the normal form is much more frequent.