National Geographic : 1990 Oct
AND DWELLERS are mas ters of invention, and any structure on a sand bottom is worth investi gating. In the distance I saw a discarded tire and swam toward it. A moray eel thrust its head out menacingly, defending its absurd castle. All eyes and jaws, a nearby lizard fish (below) awaited its CALLIURICHTHYSJAPONICUS prey like a concealed weapon, sand bearded around its head. In the gray flannel world of the volcanic sand, the dragonet (above) must at times rise above its camouflage and do some seri ous advertising. The black spot on its dorsal fin is its trademark and may help it attract a mate or defend its territory. As I approached, the dragonet levi tated like a Hovercraft. Then it sped away across the bottom and vanished in the gloom.