The market fishermen of Key West troll for kingfish and cero in their schooner smacks, using coarse hand-laid cotton lines, and codfish or other large hooks as mentioned. The bait is usually a piece of white bacon-rind, cut in an elliptical shape to resemble a fish, and strung along the shank of the hook, and fastened at the top by a piece of fine copper wire. This rude device is very successful, as they take hundreds of fish in a few days, of a size running from ten to fifty pounds. The cero and the kingfish are favorite food-fishes in Key West, where large quantities are consumed; and years ago many were carried to Havana by the smacks, until a prohibitive duty was imposed by the Spanish governor-general, in order to favor Spanish fishermen. Under the changed conditions that now exist in Cuba this trade will doubtless be resumed. Both the cero and kingfish are excellent food-fishes, with a flavor much like that of the Spanish mackerel, but more pronounced,--that is, not so delicate and delicious, but more pungent. Northern anglers who go to Florida in quest of the tarpon will find in the cero and kingfish game-fishes of great merit on light tackle. THE BONITO (_Sarda sarda_) The bonito is a very handsome and gamy fish belonging to the mackerel family. It was named _sarda_ by Bloch, in 1793, from its being taken in the vicinity of Sardinia. It inhabits both coasts of the Atlantic Ocean, and the Mediterranean Sea. It is not uncommon from the region of Cape Cod southward to Florida and the West Indies, where it is more abundant. It has a long, graceful body, nearly round, its depth a fourth of its length. It is elliptical in outline, tapering to a very slender caudal pedicle, which is strongly keeled. The mouth is large, with strong, conical teeth. The caudal fin is deeply forked, or swallow-like. Its color is dark steel-blue above, silvery below, with white belly. There are numerous dark oblique stripes running from the back downward and forward, by which it is easily recognized. The ventral fins are whitish, the other fins are bluish black. The bonito is a pelagic fish, approaching the shores in search of food, which consists of small fishes almost entirely. It grows to a length of three or four feet, though it is usually taken of ten or twelve pounds in weight. It does not rank high as a food-fish, having rather dark flesh of a strong mackerel flavor, rather too pungent to be agreeable, but it is liked generally by sailors. There is another fish of the Atlantic coast (_Gymnosarda pelamis_), of the mackerel family, that is known as the oceanic bonito. It may be distinguished by its stripes being horizontal, instead of oblique; it is rather rare.