And the colouring of this wonderful creature! The semi-transparent dorsal fin, which extends without a break from the back of the head to the tail, is broad and slightly scalloped. It displays an upper edging of radiant blue, a broad band of iridescent pink with greenish opal-like lights, and a narrow streak of the richest emerald green, close along the back. The body is covered with large scales, the colouring of which conveys a general appearance of an elaborate system of slightly elongated hexagons, generally blue outlined with pink, sometimes golden-yellow combined with green; and the colours flash and change with indescribable radiance. The head is decorated with bands of pink, orange and green; the pectoral fins are pale green with a bold medial stripe of puce, and the tail is a study of blue-green and puce. When the fish is drawn from the water the colours live, the play of lights being marvellously lovely. The colours differ, and they also vary in intensity in individuals. Though the prevailing tint may be radiant blue, it will be shot with gold in one and with pink in another. The flesh is edible, though (as is common with parrot fish) not particularly admirable with regard to flavour. It is wonderful and beautiful. Are not these qualities all-sufficient? Must everything be good to eat? To the natives of the island this jewel of the sea is known as "Oo-ril-ee," and to scientists as belonging to the scaroid family. TURTLE GENERALLY Three species of turtle frequent these waters--the loggerhead (THALASSOCHELYS CARETTA), the hawksbill (CHELONE IMBRICATA), and the green (CHELONE MYDAS). Both of the latter are herbivorous and edible; but the flesh of the first-named, a fish and mollusc eater, is rank and strong, and it is therefore not hunted, the shell being of little if any value. Loggerhead, however, is not disregarded by the blacks, though to the unaccustomed nose the flesh has a most repulsive smell. It is powerful and fierce when molested. One which was harpooned, on being hauled up to the boat seized the gunwale and left the marks of its beak deep in the wood. The creature seems also to be endowed with greater vitality than the other species, and this fact may excite the wonder of those who have seen the heart of a green turtle pulsate long after removal from the body, and the limbs an hour after separation shrink from the knife and quiver.