On the Part, J-over'S J-eap. 



Order IV. 

 PHl'SOSrOMI. 



Family 

 SALMONID^. 



Sub-generic group — Salvelini. 



I&RAYLING. 



(Thymallus vulgaris.) 



Thymallos, 



Thymallus seu Thymus, 



Coregonus maxilla superiore longiore, 



Salmo thymallus, 



Coregonus /hvmallus, 



Thymallus vulgaris. 



Grayling Salmuii, 

 Grayling or Umber, 



JULIAN, Nat. Anim. xiv. c. 22, ed. Jacobs. 



Gesner, de Aquat. p. 978; Willughbv, Hist. Pise. p. 187. 



Artedi, Spec. Pise. p. 20, No. 3. 



Lin., Sys. Nat. i. p. 512; Donovan, Brit. Fish. iv. pi. 88. 



Lacep., v. p. 254; Flem., Brit. An. p. 181. 



Yarrell, ii. p. 136; Jenyns, Man. p. 430; Siebold, Siisserwasserf. 



p. 267; GiJNTHER's Cat. vi. p. 200. 

 Pennant, Brit. Zool. iii. p. 414, ed. 18 12. 

 Walton, Compl. Angl.; Sir Humphry Davy', Salmonia; Couch, 



Fish. Brit. Isl. iv. p. 280, pi. 228. 



Characters of the Gcmts Thymallus.— "Body covered with scales of moderate size. Cleft of the mouth small; 

 maxillary short, broad, scaicely extending beyond the front margin of the orbit. Small teeth in the jaw bones, on 

 the head of the vomer and the palatines; none on the tongue. Dorsal fin long, many rayed; caudal forked. 

 Pseudobranchice well developed; air-bladder very large. Stomach horse-shoe-shaped, pyloric appendages rather 

 numerous. Temperate parts of the Northern Hemisphere." — GiiNTHER. 



