PLATE LXXXVIII. 
Salmo Thymailus: maxilla superiore, longiore, pinna dorsi radii* 
23. Mul. Zool. Dan. p. 49. n. 416. — Gmel. 
Linn. Syst. Nat. T. 3. p. 1379. sp. 17. 
Corcgonus maxilla superiore longiore, pinna dorsi ossiculorum 23. 
Art. Gen. 10. Syn. 20. spec. 41. — Kram. el. 
p. 390. n. 2. 
Salmo pinna dorsi radiis 23. Bloch Fisch. Deutchl. 1 . p. 153. n.- 
4. t. 24. 
Thynnus. Bondel. pise. 2. p. .187, &c. 
Tru.tta edentula, labiis pro dentibus limas instar exasperatis, &c. 
Klein miss. pise. 5. p. 21. n. 15. t. 4 .f. 5. 
Thymailus. Will, ichtli. p. 88. t. n. 8. Gesn. aq. 979. — Aldr. 
pise. p. 593. 
Grayling. — Bay. — -Penn. Brit. Zool. V. 3. p. 311. n. 150. 
This is a migratory fish, passing the winter season in the open sea, 
and the summer ip tlge fresh waters ; early in the spring they ascend 
the rivers, where they remain till autumn, and then return to their 
former element. The haunts of this fish in summer are the clear, 
cold, and rapid streams of Alpine regions, and in such situations, are 
found in various countries of Europe; and in Siberia. Its food con- 
sists principally of Crabs, testaceous animals, worms, insects, and the 
fry and eggs of other fishes, especially those of the Trout and the Sal-' 
mon, both which commonly abound in the streams inhabited by the 
Grayling. The Swedish fishermen are so well assured of its par- 
tiality for the eggs of the Salmon, that at the spawning season, 
whenever the Graylings make their appearance, it is a natural con- 
clusion the Salmon are not far distant. It is generally understood 
