126 SALMONID,*:. 



Heck, iind Kner, Sllsswasserf, p. 285 ; Giinth. Proc. Zool. Soc. 1862, 

 p. 39. 

 Salmo salvelinus, part., Siebokl, Siissxoasserf. p. 280. 



D. 12. A. 12-13. P. 14. V. 9. L. lat. 200. Vert. 65. 

 Ca3c. pyl. 36. 



Body slightly compressed, deeper than hroad, its greatest depth 

 being equal to the length of the head, and two-ninths of the total 

 length (to the end of the middle caudal rays). The length of the 

 head is a little more than one-half of the distance between the snout 

 and the vertical from the origin of the dorsal fin. The maxillary 

 extends beyond the hind margin of the orbit in adult fishes (and is 

 singularly straight, narrow, of nearly equal width in its entire 

 length, styliform, in the specimens examined). Teeth rather strong. 

 The diameter of the eye is more than, or scarcely equal to, half the 

 width of the interorbital space. Fins well developed ; the pectoral 

 fin terminates at a distance from the vertical from the origin of 

 the dorsal fin, but is equal to, or even more than, one-half of the 

 distance of its root from the ventral*. Lower parts whitish, or 

 but slightly tinged with red. 



Lakes of Constance, Neuchatel, and Geneva. 



a. Adult: stuff'ed. Lake of Geneva. From Mr. Yarrell's Col- 

 lection. 



h. Half-grown. Switzerland. From Prof. L. Agassiz's Collection. 



c, d. Adult. Lake of Constance. 



2. Salmo salvelinus. 



Salbhng. 



Salvelin, Willughby, p. 195. 



Umbla, Marsil. Danub. Pan.-Mys. iv. tab. 28 & 29. 



Salmo no. 10, Ai-tedi, Gen. p. 1.3 ; and no. 11, Si/non. p. 26. 



Salmo salvelinus, L. Syst. Nat. p. 511 ; Block, Fische Detdschl. taf, 



99 ; MeidiiH/er, Ic. Pise. Austr. tab. 22 ; Cuv. ^- Fed. xxi. p. 246 ; 



Heckel, Pciseberuht, in Sitzgsber. Akad. Wiss. Wien, 1851, JidVi 



p. 89 ; Heck. 8f Kner, Siisswasserf. p. 280 ; Giinth. Proc. Zool. Sue. 



1862, p. 38 ; Siebokl, Siisswasserf. p. 280 (part.). 



alpiuus, Meidinger, I. c. tab. 19. 



? Salmo salvelinus, liilss. Skand. Faun. Fisk. p. 422 ; Giinth. Proc. 



Zool. Soc. 1863, p. 7. 

 Salmo umbla, Agass. Poiss. d'eau douce, pi. 9. 



distichus, Heckel, I. c. 



monosticbus, Heckel, I. c. ; Rajjp, Fische des liodensee' s, p. 3-5. 



D. 12-13. A. 13. P. 13. V. 9. L. lat. 220. Vert. 64. 

 Ci£c. pyl. 36. 

 Body elongate, nearly as broad as deep, its greatest depth being 

 two-elevenths of the total length (to the extremity of the middle 

 caudal rays) ; the length of the head is two-ninths or one-sixth of 

 the total. The maxillary is considerably broader in and behind its 

 middle than near its base. Teeth rather feeble. The diameter of 



* So it is in our specimens and in the flgvu-e given bv Heckel. but it is shorter 

 in the figure given by Eajjp. 



