Appearance
The flasher scorpionfish has a broad, spiny head with a wide space between the eyes, a highly arched back, and a divided upper opercular spine. It has 12 spines in its dorsal fin and nine soft rays and the anal fin has three spines and five soft rays. The general color of this fish is brown mottled with white, and it can grow to a length of 13 cm . The large pectoral fin is flushed with yellow and orange on its inside and has a complete, broad black band near its margin and no large back spots. This fish is one of five very similar species of humpback scorpionfish and can be distinguished from ''S. diabolus'', S. gibbosa'', and ''S. obtusa'' by the markings on the inside of the pectoral fin. From ''S. neglecta'' it can also be differentiated by the presence of two to six points on the nasal spine.
Distribution
It is indigenous to the tropical and subtropical waters of western and northwest Australia, the Moluccas, and the Philippines to the Marquesan and Society Islands, north to Ryukyu Islands, south to Rowley Shoals, Tonga, and the Mariana and Caroline Islands in Micronesia. ''S. macrochir'' is typically found on soft substrates, where it sometimes buries itself, camouflaged among rubble where it lies in wait for passing prey.
Habitat
It is indigenous to the tropical and subtropical waters of western and northwest Australia, the Moluccas, and the Philippines to the Marquesan and Society Islands, north to Ryukyu Islands, south to Rowley Shoals, Tonga, and the Mariana and Caroline Islands in Micronesia. ''S. macrochir'' is typically found on soft substrates, where it sometimes buries itself, camouflaged among rubble where it lies in wait for passing prey.References:
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