422 ORDER MALACOPTERYGII ABDOM1NALES. 



Salmo marcenula Bl. 28, f. 3, and S. albula, Ascan. 

 pi. xxix ; has also a very determinate character in its 

 lower jaw, which extends beyond the upper \ 



The others have the muzzle obtuse, or as it were 

 truncated ; it is very difficult to assign to them precise 

 characters. Such are, 



Salmo marcena, Bl. 27 ; from the lakes of Branden- 

 burgh ; its muzzle, although obtuse, advances beyond 

 the mouth. 



Salmo Wartmanni, Bl. 105. (the lavaret); from the 

 lakes of Bourget, of Constance, of the Rhine, &c. Its 

 muzzle, or snout, is truncated on a level with the 

 fore part of the mouth ; its head is less long in pro- 

 portion, its form more attenuated. 



Coreg onus f era, Jurine. Mem. de la Soc. Phys. de 

 Geneve, torn. III. part I. pi. vii. ; from the lake of 

 Geneva, and some others ; it is higher than the 

 lavaret, and its fins are larger. 



Coregonus hyemalis, Jurine, ib. pi. viii. ; from the 

 lake of Geneva, where it appears only in winter ; its 

 head is thicker, and its fins larger in proportion than 

 in the f era. 



Cor. palcea, Cuv. ; from the lake of Neufchatel ; it 

 is higher, especially from the nape, than all the pre- 

 ceding ; its tints are deeper. 



with the Lavaret, in which they have been followed by Bloch. The 

 Salmo ihijmallus latus, Bl. 26, appears to be a variety of the other in 

 the .spawning-time. 



1 Add Salmo clupco/dcs, Pall. 



