Sprat

Definition and stakes

Portrait of James Glass Bertram James Glass Bertram,  Once a Week (1863)

“ It has already been shaped into a pertinent question, and “What is a sprat?” is ever and anon being asked by both the ignorant and the learned. Well, as in the case of the parr, and the two cases are very similar, there are people who believe a sprat to be just a sprat, and nothing more. But there are others, equally learned, who say that a sprat is a young herring. There has been some fighting over these two propositions—the sprat-and-nothing-but-a-sprat men assert that their fish is a totally distinct individual, and neither the son nor the daughter of old Clupea harengus. ”
Source: Wikisource

Portrait of Thomas Henry Huxley Thomas Henry Huxley,  Popular Science Monthly (1881)

“ The sprat's lower jaw is shorter; the shields in the middle of the belly have a sharper keel, whence the ventral edge is more like a saw; and the ventral fin lies vertically under the front edge of the dorsal fin, or even in front of it; while in the herring, though the position of the ventral fin varies a little, it lies more or less behind the front margin of the dorsal fin. The anal fin is of the same length as the dorsal, in the herring, longer than the dorsal in the sprat. ”
Source: Wikisource

J. G. Wood,  Nature's Teachings: Human Invention Anticipated by Nature

“ LERNENTOMA. HARPOON.
The left-hand figure represents a curious parasitic crustacean, popularly called the Sprat-sucker, because it is usually found on sprats. It affixes itself mostly to the eye, the deeply barbed head being introduced between the eye and the socket. In some seasons this remarkable parasite is quite plentiful, while in others scarcely a specimen can be found. Its total length is slightly under an inch, and its scientific name is Lernentoma Spratti.
The following graphic account of some prototypic weapons belonging to a marine worm is given by Mr.
”
Source: Gutenberg

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