372 APPENDIX. 
Fam. v. Surirellee. 
Synedra affinis m. Shores of Vancouver Island. 
Cymatopleura solea. Columbia River; Pend’Oreille River. 
— elliptica. Columbia River. 
Surirella biseriata. Columbia River, 
— splendida. Columbia River. 
— gemma m. ‘Vancouver Island. 
Campylodiscus costatus. Columbia River, 
— parrulus m. Vancouver Island. 
— striatus m. Vancouver Island. 
Fam. vi. Striatellec. 
Rhabdonema arcuatum m. Shores of Vancouver Island, and at 8 fathoms. 
Tabellaria fenestrata. Spokan River. 
Grammatophora marina m. Shores of Vancouver Island. 
— mexicana m. Shores of Vancouver Island. 
— serpentina m. Shores of Vancouver Island. 
— serpentina (var. 8). Smith m. Vancouver Island. 
Gephyria media m. Vancouver Island. 
Eupleuria pulchella m. Vancouver Island. 
Fam. vii. Melosiree. 
Cyelotella Dallasiana. Columbia River. 
— operculata. Tributary of Kootenay River. 
Hyalodiseus levis m. Vancouver Island. 
— subtilis m. Shores of Vancouver Island. 
Podosira hormoides m. Shores of Vancouver Island, and at 8 fathoms. 
Melosira orichaleea. Columbia River; Pend’Oreille River; Lake 
Osoyoos. 
— marina m. Vancouver Island. 
— nummuloides m. Vancouver Island. 
— varians. Pend’Oreille River ; Cow Creek; Spokan River. 
— subflexilis, Columbia River. 
Fam. viii. Coaxinodiscee. 
Coxinodiseus radiatus m. Shores of Vancouver Island. 
— ovulus iridis m. Vancouver Island. 
