River fish (4)
(Other definitions for dace that I've seen before include "Freshwater fish" , "Small river fish" , "Fish in the carp family" , "Chubby swimmer" .)
(Other definitions for dart that I've seen before include "Small pointed projectile" , "quarrel" , "Move along rapidly and lightly" , "How a musketeer begins" , "Move quickly and suddenly" .)