OF MT. KINABALU AND BRITISH NORTH BORNEO. 227 
NAVICULA DICEPHALA, W. Sm. Brit. Diat. i. 53, t. 17. f. 157. 
Sarawak, Matang, pipe-track, among algz in peaty water. March. 4413. 
Distrib, Great Britain, Europe, tropical Africa, United States. 
NAVICULA ELLIPTICA, Kütz. Dacill. 98, t. 30. f. 55 (1844). 
Tenom, 700’, in water oozing from rock. Jan. 2935. 
Distrib. Europe, N. America, tropical Africa. 
NAVICULA ELLIPTICA, var. OBLOXGELLA, Van Heurck, Syn. Diat. 92, 
t. 10. f. 12. 
Tenom, 700', in water oozing from rock. Jan. 2935. 
Distrib, Europe. 
*NAVICULA GASTRUM, Donk. Brit. Diat. 22, t. 3. f. 10. 
Kinabalu, summit, 12,500’, where Kadamaian streams over granite. Feb. 
4211. 
Distrib, Europe, N. America, tropical Africa. 
NAVICULA GIBBA, Kütz. Bacill. 98, t. 28. f. 70. 
Tenom, 700', among Aicciocarpus in stagnant pool. Jan. 2657. Among 
.Vaias in stagnant pool. Jan. 2819. Among submerged alge in ditch. 
Jan. 3080. Among floating plants in ditch. Jan. 2838. Sarawak, 
Matang, 1000’, on damp wood. March. 4406. 
Distrib, Europe, N. & S. America, Ceylon. 
NAVICULA IRIDIS, Ehrenb. Verbr. 130, t. 4. 1. f. 2. 
Tenom, 700', on damp ground. Jan. 2936. Tenom, 700', on submerged 
plants in ditch. Jan. 3080. 
Distrib. Europe, 8. America, United States, Ceylon. 
NAVICULA MESOLEPTA, Ehrenb. Amer. t. 4. 11. f. 4. 
Tenom, 700', on roadside ditch, after rain. Jan. 2911. 
Distrib. Europe, America, tropical Africa. 
*NAVICULA VIRIDULA, Kät:. Syn. Diat. t. 1. f. 12 (1833). 
Kinabalu, summit, 12,500’, where Kadamaian flows over granite. Feb. 
4211. Sarawak, Matang, 10007, on damp wood. March. 4406. 
Distrib. Europe, United States. 
NAVICULA CRYPTOCEPHALA, Kütz. Dacill. 95, t. 3. f. 26. 
Tenom, 700’, among submerged plants in ditch. Jan. 3080. Tenom, 
700°, in puddles after heavy rain. Jan. 2839. Senagong, 1000’, among 
dead leaves in stream. Jan, 2963. 
Distrib. Europe, tropical Africa United States. 
