The Collaborative International Dictionary of English v.0.48:
Water chevrotain \Wa"ter chev`ro*tain"\ (Zool.) A large West African chevrotain (Hyaemoschus aquaticus). It has a larger body and shorter legs than the other allied species. Called also water deerlet. [1913 Webster]The Collaborative International Dictionary of English v.0.48:
Water deerlet \Wa"ter deer"let\ See Water chevrotain. [1913 Webster]