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1897 19th_century 5_fingers absurd_res ambiguous_gender ancient_art atelid aye-aye biological_illustration callitrichid cebid claws feet feral fingers fur group haplorhine hi_res howler_monkey howling_monkey hugh_craig lemur loris lorisoid mammal marmoset monkey new_world_monkey pitheciid plant prehensile_feet primate public_domain saki_monkey slow_lemur slow_loris spectral_tarsier spectrum_tarsier squirrel_monkey strepsirrhine tail tarsier technical_illustration text toes traditional_media_(artwork)zoological_illustration