Note 79 — NOTES ON CERTAIN FISHES AND MARINE ANIMALS FOUND IN NORFOLK.
Reading edition
The "asprage" (or it may be "a sprage") may possibly be the Dab, Pleuranectes limanda, which Rondeletius calls Passer asper. I do not find that species mentioned otherwise, and a great many are taken by the Cromer and Sheringham fishermen.