A black-bass or trout fly-rod of seven or eight ounces is very suitable for fly-fishing, with a click reel and a braided linen line of pretty large size, say D or E, in order to give weight enough for casting. The enamelled silk line is, of course, better, but it does not last long in salt water. Any bright or gaudy fly will answer, on hooks Nos. 1 to 3, though yellowish or grayish flies are perhaps more attractive. A single fly only should be used, with a three or four foot leader. Black-bass rods and tackle are just right for bait-fishing for the Spanish mackerel, except that a braided linen line, and not a silk line, should be used for reasons just given. The best bait is a small, bright fish, three or four inches long, either mullet or anchovy, hooked through the lips. A small pearl squid, or a very small trolling-spoon or spinner, may be used instead, but the minnow is far and away the most attractive lure. The bait is cast as far as possible toward the school as it is running past the point of an inlet or the end of a pier, and reeled in slowly, but rapidly enough to keep the bait on or near the surface, no sinker being employed. If the fishing is done from a pier, a very long-handled landing-net must be provided. The best plan is to fish from a small boat moored to the pier, as the angler is not so likely to be seen by the fish, and they are more easily landed. The same method is pursued in fly-fishing in the general features, except that the fly is allowed to sink after fluttering it awhile on the surface; no other special suggestions are needed. I have found the following flies useful: gray drake, green drake, red ibis, oriole, professor, and silver doctor, in black-bass patterns, on hooks Nos. 1 to 3. THE CERO (_Scomberomorus regalis_) The cero, or sierra, was described by Bloch, in 1795, from a drawing of a specimen from the West Indies, by Plumier. He named it _regalis_, meaning "royal" or "regal." It belongs to the West Indian fauna of fishes, and is common from Florida to Brazil. Occasionally it strays in the summer as far north as Massachusetts. It is closely allied to the Spanish mackerel, and resembles it in form, but differs very much in coloration and size, being more sombre and much larger. Its color is brownish on the back, with silvery sides and belly; it is marked with two dusky longitudinal stripes, and several rows of dark spots, not bronze or golden as in the Spanish mackerel.