15. S. purpuratus from the Pacific coast of Asia and North America.

16. S. macrostoma.—Japan.

17. S. namaycush.—The great Lake-trout of North America.

b. Salvelini: Charr.

1. S. umbla.—The “Ombre chevalier” of the Swiss lakes.

2. S. salvelinus.—The “Sælbling” of the Alpine lakes of Bavaria and Austria.

3. S. alpinus.—The common Northern Charr, growing to a length of four feet, and migratory.

4. S. killinensis.—The Loch Killin Charr, Inverness-shire.

5. S. willughbii.—The Loch Windermere Charr.

6. S. perisii.—The “Torgoch” of Wales.