Fin's Fish Guide
The Japanese swallow (Genicanthus semifasciatus) is a saltwater fish of the family Pomacanthidae that grows up to 21 cm.
Description
The Japanese swallow is a marine angelfish (Pomacanthidae) from the western Pacific, off East Asia. The species grows to about 21 cm and has an elongate body with a deeply forked, swallowtail-shaped tail. Males have narrow crossbars and a yellow back, females a black head cap. Unlike many angelfish it hovers in open water above steep reef slopes and eats mainly zooplankton. It changes sex; males and females are differently marked. The fish is harmless to humans.
Frequently asked questions
How do you recognise the Japanese swallow?
The Japanese swallow has a flattened, disc-shaped body and is mainly white.
Where does the Japanese swallow live?
The Japanese swallow lives in the sea (marine waters) and is mostly found around stony or rocky ground. Asia: Taiwan/Ch Taipei, Japan, Ryukyu Is., Philippines, Ogasawara Is.
How big does the Japanese swallow get?
The Japanese swallow grows to a maximum of about 21 cm.
Is the Japanese swallow dangerous to humans?
No, the Japanese swallow is harmless to humans. This species is harmless to humans. No specific first aid is needed. Still handle the fish with care: mind the fin rays and the sharp edges of the gill cover, and rinse any scratch with clean water and cover it. For a dirty or deep wound check tetanus status.
Is the Japanese swallow edible?
Yes, the Japanese swallow is commonly eaten.
More photos
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All data
Identification
Appearance
Habitat & distribution
Behaviour & biology
For anglers
Safety
Status & sources
Same genus Genicanthus
More from the family Pomacanthidae
Want the complete picture on the Japanese swallow?
Point your camera at the fish and Fin names the species in seconds. Free, and the Japanese swallow is one of 12,519 species in the app.