. Annalen des Naturhistorischen Museums in Wien. Naturhistorisches Museum (Austria); Natural history. Fig. 19. Mormyrus ovis (schem. Zeichn. n. Boulenger, Materiaux etc.).. Fig. 20. Mo)-niyrus caballus (schem. Zeichnung n. Boulenger, Materiaux etc.).. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Naturhistorisches Museum (Austria). Wien, Naturhistorisches Museum [etc. ]

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Keywords: ., bookcentury1900, bookdecade1900, booksubjectnaturalhistory, booky