Japanese Swallowtail Angelfish and Similar Species
Genicanthus semifasciatus
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Open the appSeveral fish can be confused with Japanese Swallowtail Angelfish. Here are the key differences.
Species often confused with {name}
Blackspot Angelfish
Genicanthus melanospilos
Key differences: Males of G. melanospilos have a distinct black spot at the base of the pectoral fin and a more yellowish body coloration, lacking the prominent dark bands of G. semifasciatus. Females are similar but G. melanospilos females often have a black spot on the dorsal fin.
Lamark's Angelfish
Genicanthus lamarcki
Key differences: Males of G. lamarcki have distinct black horizontal stripes along the body, contrasting with the oblique bands of G. semifasciatus. Females are also striped, but less intensely.
Ornate Angelfish
Genicanthus bellus
Key differences: Males of G. bellus have a more complex pattern of orange and blue lines, and females have a distinct black stripe running through the eye and along the lateral line, which is absent in G. semifasciatus.
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