19th_century absurd_res ambiguous_gender ancient_art aquatic aquatic_gastropod biological_illustration blue_body blue_dragon_slug charles_alexandre_lesueur cnidarian english_description feral french_text gastropod group hi_res hula_skirt_siphonophore hydrozoan man_o'_war_(medusozoa) medusozoan mollusk multicolored_body nudibranch page_number public_domain sea_slug simple_background siphonophore slug southern_man_o'_war technical_illustration tentacles text white_background zoological_illustration
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