from
The Collaborative International Dictionary of English v.0.48
Crucian carp \Cru"cian carp`\ (-shan k?rp`). [Cf. Sw. karussa,
G. karausche, F. carousse, -assin, corassin, LL. coracinus,
Gr. ????? a sort of fish.] (Zool.)
A kind of European carp ({Carasius vulgaris}), inferior to
the common carp; -- called also {German carp}.
[1913 Webster]
Note: The gibel or Prussian carp is now generally considered
a variety of the crucian carp, or perhaps a hybrid
between it and the common carp.
[1913 Webster]