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Keywords from Image Description:
Sirenia latirostris and Sirenia fluvatilis. Manatus latirostris Harl Manatus fluviatilis Jllg Manatus latirostris equals Trichechus manatus latirostris Note Manatus fluviatilis ILLIGER Abhandl Kn Akad Wissens in Berlin This name given without diagnosis appears with americanus in list of South American mammals and is en nomen nudum