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Above: Ambon Scorpionfish (Pteroidichthys amboinensis) in Ellen<br />

Thaler’s aquarium.<br />

Left: The Weedy Scorpionfish (Rhinopias frondosa) can be<br />

smooth or, like this specimen, covered in masses of appendages.<br />

or shrimp. Once acclimated, however, they are easy to<br />

maintain. It is important to use dim illumination, as<br />

they are not happy under very bright light.<br />

DISTRIBUTION<br />

The natural distribution of the Ambon Scorpionfish is<br />

in the western Indo-Pacific, from the Red Sea to Papua<br />

New Guinea and north to Japan; occasional specimens<br />

have also been found at the Ryukyu Islands, Sulawesi,<br />

Vietnam, Madras, and the eponymous island of Ambon.<br />

DESCRIPTION<br />

The Ambon Scorpionfish can attain a body length of 4.75<br />

inches (12 cm). Because their most important characteristic<br />

is their ability to vary their external appearance<br />

to match their surroundings, they are easily confused<br />

with other very similar species—especially those of the<br />

genus Rhinopias, in particular the Weedy Scorpionfish<br />

(Rhinopias frondosa), which, however, is twice as big at<br />

9.5 inches (24 cm) long. Both species exhibit the typi-<br />

116 CORAL

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