Opercle of Phractocephalus hemioliopterus (external view)
Maximum known length for this species		133.0 cm TL (male)
Specimen collection		Study collection of P. Béarez (Paris, France), specimen n°PB-0541
Specimen determination		Béarez, P. (2000)
Specimen length		60.6 cm SL, 70.0 cm TL
Collection site of the specimen		Yannacocha, Pucallpa (Peru)
Image scale		1 cm
Image source		Martinez Caceres, M.
Image acquisition		camera
		Nikon D5300 (Micro-Nikon 60 mm)