GWYNIAD 
903 
Fig. 226. Coregonus lavaretus , pycnocentrus , l / 2 of the natural size, cF, taken in Lake Wetter, Nov., 1863, by Widegren. a, head of 
the same specimen, natural size; i, snout of the same, seen from in front, natural size. 
Fijr. 227. 
Coregonus lavaretus , o.ryrJtyncJnts, spawning o 71 ? taken in Lake Wener at Stora Eken. 
a. head of the same specimen, natural size. 
a 
of the natural size. 
Scandinavian Fishes. 
114 
