lutra-, lutr- +

(Latin: otter; aquatic animal)

A genus of otters; including, Lutra lutra: European otter; and Lutra sumatrana: Hairy-nosed otter.
lutraphobia (s) (noun) (no plural)
An abnormal dislike of otters: Although the aquatic, weasel like mammals are so furry and with webbed feet and a flat tail, Janet has an irrational fear of them, termed lutraphobia.
An otter subfamily.
lutrine: otters
A reference to otters of the family Lutrinaeor.