12 
synedra Ehrenb. 
Synedra capitata Ehrenb., Inf., p. 211. Van Heurek, Syn. Diat. 
Belg., PL 38, fig. 1. Boyer, Diat. Philadelphia, PL 11, fig. 8. 
Little River, N.S.; Cobble Hill, Deadman river, B.C.; McKay lake, Ont. 
Synedra danica Kutz., Bac., p. 66. Van Heurek, Syn. Diat. Belg., 
Pl. 38, fig. 14. Boyer, Diat. Philadelphia, Pl. 11, fig. 2. 
North river, Little River, Brora lake, Slack lake, Folly river, Pollet 
lake, N.S.; Fitzgerald lake, N.B.; McKay lake, Ont.; Prospect lake, 
Pukaist creek, B.C. 
Synedra delicatissima W. Smith, Syn. Brit. Diat., vol. 1, p. 72, PL 12, fig. 94. 
McKay lake, Ont. 
eunotia (Ehrenb.) Grun. 
Eunotia arcus Ehrenb., Mikrogeologie, PL 16, 1, fig. 24. Van Heurek, 
Syn. Diat. Belg., PL 34, fig. 3. A. Schmidt, PL 274, figs. 32-47. 
Generally distributed, especially in McQuade Lake deposit. 
Eunotia biceps Ehrenb., in Kutz., Bac., p. 37, Pl. 29, fig. 65. Boyer, 
Diat. Philadelphia, Pl. 13, fig. 27. 
Generally distributed. 
Eunotia bidentula W. Smith, Syn. Brit. Diat., vol. 2, p. 83. Van 
Heurek, Syn. Diat. Belg., PL 34, fig. 28 (var.) Boyer, Diat. Philadelphia, 
PL 13, fig. 20. ( Eunotia camelus Lewis (not Ehrenb.) Proc. Acad. Philadel- 
phia, vol. 17, p. 14, PL 2, fig. 12b). The type form has more rounded ends. 
Generally distributed in the eastern deposits. 
Eunotia ehrenbergii Ralfs, in Prit. Inf., p. 764. Kutz, Bac., p. 38, 
Pl. 5, fig. 27. (E. quinaria Kiitz., Bac., p. 38, Pl. 5, 27, fig. 1.) H. L. 
Smith, Type Slide No. 655. 
Prospect lake, B.C. Rare. 
Eunotia gibbosa Grun., in Van Heurek, Syn. Diat. Belg., Pl. 35, fig. 13. 
Rare in McQuade Lake deposit, N.S. 
Eunotia gracilis (Ehrenb.) Rab., El. Eur. Alg., p. 72. Van Heurek, 
Syn. Diat. Belg., Pl. 34, figs. 1, 2. Boyer, Diat. Philadelphia, PL 13, fig. 3. 
Generally distributed in the eastern deposits. 
Eunotia hemicyclus (Ehrenb.) Ralfs, in Prit., Inf., p. 763. Van 
Heurek, Syn. Diat. Belg., PL 35, fig. 23 (as Pseudoeunotia hemicyclus 
(Ehrenb.) Grun.). Boyer, Diat. Philadelphia, PL 12, fig. 23. 
McQuade lake, Folly lake, Trout lake, Little Gummel lake, N.S.; 
Stannard lake, N.B.; Colbert township, Que.; Stisted township, Ont. 
Eunotia impressa Ehrenb., Mikrogeologie, PL 14, fig. 66. ( Eunotia 
impressa angusta Grun., in Van Heurek, Syn. Diat. Belg., Pl. 35, fig. 1. 
Generally distributed in the eastern deposits. 
