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Keywords from Image Description:
The cave fauna of North America Pl. XXIII . PL xxm ey ' ' PACKARD DEL US UTKOH LlOl'l BRAIN AND RUDIMENTARY EYES OF CECIDOT AND BLIND BEETLES Pl XXIII Illustration biodiversitylibrary org title Packard Biodiversity Heritage Library The cave fauna of North America Cave animals Caves North America Smithsonian Institution