Curious fish, in great numbers, may be seen in the Harbour of Port Royal, Jamaica, on the surface of the water, and are ranked among the peculiarities of the place. They are the Guardo, or Guard-Fish; the Jack (Sword-Fish); and the Ballahou. The Jack is the largest, and appears to be always at war with the two others; it is armed with formidable teeth; it basks on the surface of the water during the heat of the day, in a sort of indolent, unguarded state; but this is assumed, the better to ensnare the other fish, and to catch the floating bodies that may happen to pass near it; for the moment anything is thrown into the sea from the ship, the Jack darts with the rapidity of lightning upon it, and seizing it as quickly, retreats. This Warrior-fish possesses a foresight or instinctive quality which we see sometimes exemplified in different animals, almost amounting to second reason, such as the sagacity it displays in avoiding the hook when baited; although extremely voracious, it seems aware of the lure held out for its destruction, and avoids it with as much cunning as the generality of fishes show eagerness to devour it. The situation it takes, immediately in the wake of the ship at anchor, is another instance of its sagacity; as whatever is thrown overboard passes astern, where the fish is ever on the alert for the articles thrown over. No other fish of equal size dare approach. The Jack is, however, sometimes enticed with the bait; but he is more frequently struck with a barbed lance, or entrapped in a net. The Guardo has similar habits with the Jack, but is generally beaten by him; yet the former tyrannizes with unrelenting rigour over the weaker associate, the Ballahou. The tiger of the ocean, the Shark, is often cruising about Port Royal, but rarely injures human life. At Kingston, however, such distressing events often occur. There was a pet Shark known as "Old Tom of Port Royal;" it was fed whenever it approached any of the ships, but was at last killed by the father of a child which it had devoured. Whilst it remained here, no other of the Shark tribe dare venture on his domain; he reigned lord paramount in his watery empire, and never committed any depredation but that for which he suffered. Attending the Shark is seen the beautiful little Pilot Fish, who, first approaching the bait, returns as if to give notice, when, immediately after, the Shark approaches to seize it. It is a curious circumstance, that this elegant little fish is seen in attendance only upon the Shark. After the Shark is hooked, the Pilot Fish still swims about, and for some time after he has been hauled on deck; it then swims very near the surface of the water. When the Shark has been hooked, and afterwards escapes, he generally returns, and renews the attack with increased ferocity, irritated often by the wound he has received.