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Hydrodamalis

noun
Hy·​dro·​dam·​a·​lis

Definition of Hydrodamalis 

: a genus of aquatic mammals that includes only the Steller's sea cow and is now usually placed in the family Dugongidae but was formerly made type of a separate family

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History and Etymology for Hydrodamalis

New Latin, from hydr- + Greek damalis heifer; akin to Greek damalēs young bull

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