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GURNARDS.
81

nest it may be called. It consisted of the very minutest pieces of straw, or sticks, the exact colour of the ground at the bottom of the water, on which it was laid: so that it was next to an impossibility for any one to discover the nest, unless he saw the fish at work, or observed the eggs. The nest is somewhat larger than a shilling, and has a top or cover, with a hole in the centre, about the size of a very small nut; in which are deposited the eggs, or spawn. This opening is frequently concealed by drawing small fragments over it; but this is not always the case. Many times have I taken up the nest, and thrown the eggs to the multitude around, which they instantly devoured with the greatest voracity. These eggs are about the size of poppy-seeds, and of a bright-yellow-colour; but I have at times seen them almost black, which I suppose is an indication that they are approaching to life. In making the nest, I observed that the fish used an uncommon degree of force when conveying the material to its destination. When the fish was about an inch from the nest, it suddenly darted at the spot, and left the tiny fragment in its place; after which it would be engaged for half a minute in adjusting it. The nest, when taken up, did not separate, but hung together, like a piece of wool.… The place chosen by these fishes for their nests is where the ground forms an inclined plane, and in about six inches of water.… I think they breed early in the month of August."

Another species of the same genus, the largest which is found on our shores, the Fifteen-spined Stickleback (G. spinachia), sometimes called the