22 
pinnularia Ehrenb. 
Pinnularia acrosphaeria (Br6b.) Cleve, Sv. Vet.-Akad. Handl. II, 
vol. 27, p. 86. Navicula acrosphaeria (Breb.) Kiitz., Bac., p. 97. W. 
Smith, Syn. Brit. Diat. 1, PI. 19, fig. 183. Boyer, Diat. Philadelphia, 
PI. 30, fig. 7. 
Little River, Folly lake, Earltown lake, N.S. 
Pinnularia acrosphaeria turgidula Grim., Sv. Vet.-Akad. Handl. II, 
vol. 27, p. 86. Boyer, Diat. Philadelphia, PI. 30, fig. 8. A. Schmidt, 
Atlas, PI. 311, fig. 9. 
Brora lake, N.S. 
Pinnularia borealis Ehrenb. Navicula borealis (Ehrenb.) Kiitz. Van 
Heurck, Syn. Diat. Belg., PL 6, fig. 3. A. Schmidt, Atlas, PL 45, fig. 17. 
Boyer, Diat. Philadelphia, Pl. 30, fig. 22. 
North River, Little River, Factory Dale, Morden, Bass River, Folly 
lake, Earltown lake, N.S.; Desert river, Que. 
Pinnularia brebissonii (Kiitz.) Cleve, Sv. Vet.-Akad. Handl. II, 
vol. 27, p. 78. Navicula brebissonii Kiitz. A. Schmidt, Atlas, PL 44, 
figs. 17, 18. Van Heurck, Syn. Diat. Belg., PL 5, fig. 7. Boyer, Diat. 
Philadelphia, Pl. 29, fig. 12. 
Generally distributed. 
Pinnularia cardinaliculus Cleve, Sv. Vet.-Akad. Handl. II, vol. 27, 
p. 79. Pl. 1, fig. 12. Boyer, Diat. Philadelphia, Pl. 30, fig. 1. 
Slack lake, Folly river, Clear lake, Brora lake, N.S. 
Pinnularia dactylus (Ehrenb.) Cleve, Sv. Vet.-Akad. Handl. II, 
vol. 27, p. 90. Pinnularia gigas Ehrenb. Navicula gigas. Navicula dac- 
tylus. A. Schmidt, Atlas, PL 42, figs. 1, 6. Boyer, Diat. Philadelphia, 
Pl. 28, fig. 3. 
Generally distributed. 
Pinnularia flexuosa Cleve, Sv. Vet.-Akad. Handl. II, vol. 27, p. 93, 
Pl. 1, fig. 23. A. Schmidt, Atlas, Pl. 311, figs. 1, 2. 
North River, Morden, Folly lake, Earltown lake, Robertson lake, 
Brora lake, N.S.; Desert river, Que.; Chaffey township, Ont. 
Pinnularia gibba (Ehrenb.) W. Smith, Syn. Brit. Diat., vol. 1, p. 58, 
PL 19, fig. 180. 
Generally distributed. 
Pinnularia interrupta W. Smith, Syn. Brit. Diat., vol. 2, p. 96. Pin- 
nularia biceps Greg. A. Schmidt, Atlas, PL 45, figs. 69, 70. 
Pukaist creek, B.C. 
Pinnularia lata (Br6b.) W. Smith, Syn. Brit. Diat., vol. 1, p. 55, Pl. 
18, fig. 167. Navicula pachyptera (Ehrenb.) A. Schmidt, Atlas, PL 45, 
fig. 8. Boyer, Diat. Philadelphia, PL 30, fig. 23. 
North River, Salmon river, N.S.; Chaffey township, Ont.; Chilliwack 
(south of), B.C. 
