Cytraxian cricket
The Cytraxian cricket was an insect native to the fifth moon of Cytrax. Their calls were reputed to be an auditory aphrodisiac. 

In 2375, they were part of a holoprogram of the fifth moon of Cytrax that Neelix's Silver Blood counterpart offered to Tom Paris and B'Elanna Torres's counterparts for their honeymoon. ()

de: Cytraxianische Grille
Animals