546 TEN YEAES IN SWEDEN. 



weight 1 to 3 Ib. We see by Ms synonymes that lie consi- 

 ders this Finland fish as identical with the British powan. 



In the south of the Baltic it appears that this species 

 answers to the German " schnapel," which is the true 

 C. oxyrhynchus, L. This last-named species is met with also 

 in the lakes Wener and Wetter, in Sweden, on the 

 Swedish shores of the Baltic, and probably also on the 

 south-west coast of Finland. 



He describes this latter under the synonymes of (7. 

 oxyrhynchus , L. ; 8. lavaretus (der Schnepel), Bloch. ; C. 

 oxyrhynchus, Val., Kroyer, Siebold, and Widigren. 



2. C. marcena, Bloch., not NHsson. Walkea suki. G. 

 fera, Widigren. 



Common in Ladoga. General size 5 to 10 Ib. His 

 description exactly agrees with Mr. Lloyd's, and he, more- 

 over, says that he fancies this is the true Lapland gwynniad. 



3. C. Widigreni. Walamka suki. G. fera, Widigren 

 nee Jurine. 



Is met with in the deepest parts of the north of Lake 

 Ladoga, and is taken during the spawning season in fifty to one 

 hundred fathoms. Dr. Widigren has had the goodness to 

 send me a specimen of his 0. fera from the Wetter, and 

 after a careful examination, I can safely identify his C. fera 

 with my G. Widigreni, from Ladoga. But I am obliged to 

 give this a new name, because Widigren' s G. fera not only 

 includes this species, but also the foregoing, G. marcena, Bl. 

 Moreover, the name is wrong, because Jurine' s G. fera, from 

 Bodensjon, has, according to Bapp's description, a shorter 

 and higher head and shorter fins. From all this G. fera, 

 from Bodensjon, appears to come much nearer our G. 

 marcena, BL, than our G. Widigreni, which is identical with 

 G. Widigreni, from the Wetter. Siebold fancies that 

 G. fera, Jurine, is a local form of G. marcena, Bl. 



4. G. Nilsonii, Yal. Is also met with in Ladoga, and in 

 this lake all the Finland species of gwynniad live together. 



5. G. albula, Nilss. In the Ladoga attains a length of 

 12 to 14 in. 



He adds that two other species or forms of vendace are 



