Elaeophora elaphi n. sp. (Filarioidea: Onchocercidae) parasite of the red deer (Cervus elaphus). With a key of species of the genus Elaeophora.

We described a new species of nematode filarioid (Onchocercidae) parasiting the hepatic vessels of the red deer Cervus elaphus. This new species is characterized by the number and disposition of the papillae on the genital area of the male, and the presence and characteristics of an "area rugosa" situated just in front of the ventral impair precloacal papilla. We discussed this new species, giving a key to the identification of all the known species of the genus Elaeophora.