The present note draws attention to the first substantiated Phractocephalus record from Surinam, to the customary incorrect spellings of the specific name since Cuvier, 1829 and to an unexpected ontogenetic change in the striking colour pattern of this species.

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Journal Zoologische Mededelingen
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Citation
Boeseman, M. (1983). Some remarks on the South American Pimelodid catfish usually known by the name of Phractocephalus Hemiliopterus (Bloch & Schneider) (Pimelodidae, Siluriformes). Zoologische Mededelingen, 57(12), 105–114.