The Collaborative International Dictionary of English v.0.48:

Bluepoll \Blue"poll`\, n. [Blue + poll head.] (Zool.)
   A kind of salmon (Salmo Cambricus) found in Wales.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Bull trout \Bull" trout`\ (Zool.)
   (a) In England, a large salmon trout of several species, as
       Salmo trutta and Salmo Cambricus, which ascend
       rivers; -- called also sea trout.
   (b) Salvelinus malma of California and Oregon; -- called
       also Dolly Varden trout and red-spotted trout.
   (c) The huso or salmon of the Danube.
       [1913 Webster]