10 
CYCLOTELLA Kutz. 
Cyclotella antiqua W. Smith, Syn. Brit. Biat., vol. 1, p. 28, PL 5, fig. 49. 
A. Schmidt, Atlas, Pi. 224, figs. 45-48. Boyer, Diat. Philadelphia, PL 2, fig. 11. 
Occurs in the Little River deposit, N.S. 
Cyclotella comta (Ehrenb.) Kutz., Sp. Alg., p. 21. Van Heurck, Syn. 
Biat. Belg., Pl. 92, fig. 16. Boyer, Biat. Philadelphia, PL 2, fig. 7. 
& Occurs in the deposits of McQuade lake, Loon lake, Salmon river, 
Silica lake, Folly lake, Robertson lake, Brora lake, Pollet lake, Clear lake, 
N.S.; Floods lake, N.B. 
Cyclotella meneghiniana Kutz., Bac., p. 50. A Schmidt, Atlas, PL 
222, figs. 25, 31, 32. Boyer, Biat. Philadelphia, PL 2, fig. 8. 
Little River, N.S.; Besert river and Michel lake, Que. 
stephanodiscus Ehrenb. 
Stephanodiscus astraea spinulosus Grun., in Van Heurck, Syn. Biat. 
Belg., PL 95, fig. 6. A. Schmidt, Atlas, PL 226, fig. 7. 
Prospect lake, Quamichan lake, B.C. 
Pennatae 
tabellaria Ehrenb. 
Tabellaria binalis (Ehrenb.) Grun., Van Heurck, Syn. Biat. Belg., PL 
44, fig. 23. 
Colbert township, Que. 
Tabellaria fenestrata (Lyngb.) Kutz., Bac., p. 127. W. Smith, Syn. 
Brit. Biat., vol. 2, p. 46, PL 43, fig. 317. Boyer, Biat. Philadelphia, Pl. 8, 
figs. 11, 12. 
More or less common in the eastern deposits. 
Tabellaria flocculosa (Roth) Kutz., Bac., p. 127. W. Smith, Syn. Brit. 
Biat., vol. 2, p. 45, Pl. 43, fig. 316. Boyer, Biat. Philadelphia, Pis. 8, 9, 10. 
More or less common in the eastern deposits. 
tetracyclus Ralfs 
Tetracyclus ellipticus (Ehrenb.) Grun. Husted, in A. Schmidt, Atlas, 
PL 281, fig. 13. 
Quesnel, B.C. 
Tetracyclus ellipticus clypeus (Ehrenb.) Husted, in A. Schmidt, Atlas, 
PL 281, fig. 23. Stylobiblium clypeus Ehrenb. Mikrogeologie, Pl. 33, 
2, fig. 18. Ralfs, in Prit. Inf., PL 4, fig. 45. 
Blackwater river and vicinity of Quesnel, B.C. 
