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Planehead Filefish and Similar Species

Monacanthus hispidus

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Several fish can be confused with Planehead Filefish. Here are the key differences.

Species often confused with {name}

Slender Filefish

Monacanthus tuckeri

Key differences: M. tuckeri is generally more slender and elongated, with a longer snout and a more pointed caudal fin. Its coloration tends to be more uniform, often yellowish or greenish, and it typically lacks the prominent dewlap associated with the pelvic spine seen in M. hispidus.

Pygmy Filefish

Monacanthus setifer

Key differences: M. setifer is smaller, typically reaching only about 10 cm. It has a more rounded body profile and often exhibits distinct dark spots or lines on its body. The first dorsal spine is relatively shorter compared to M. hispidus.

Orange-spotted Filefish

Cantherhines pullus

Key differences: C. pullus has a more robust body and typically displays distinct orange or reddish spots on its body, which are absent in M. hispidus. Its first dorsal spine is also less prominent and not as strongly erectile.

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