APPENDIX. 373 
Fam. viii. Coxinodisceee—continued. 
Coxinodiscus subtilis m. Shores of Vancouver Island. 
Actinocyclus undulatus m. Vancouver Island. 
— subtilis m. Vancouver Island. 
Actinoptychus senarius m. Vancouver Island. 
Arachnoidiscus Ehrenbergii m. Vancouver Island, at 8 fathoms. 
Fam. ix. Hwpodiscew. 
Auliscus celatus m. Vancouver Island. 
Fam. x. Biddulphee. 
Biddulphea aurita m. Shores of Vancouver Island, and at 8 fathoms. 
-—— tumida m. Shores of Vancouver Island, and at 8 fathoms. 
— levis m. Vancouver Island. 
Isthmia nervosa m. Vancouver Island. 
Fam. xi. Anguliferec. 
Triceratium Monterayii m. Vancouver Island. 
Amphitetras antediluviana m. Vancouver Island. 
Fam. xii. Chcetoceree. 
Cheetoceros incurvum m. Vancouver Island. 
Fam. xiii. Cononeidec. 
Cononeis placentula. Columbia River; Pend’Oreille River; tributary 
of Kootenay. 
— pediculus. Tributary of Kootenay. 
— Thwaitesii. Columbia River. 
— pseudomarginata m. Shores of Vancouver Island, and at 10 fathoms. 
— distans m. Vancouver Island, at 10 fathoms. 
— concentrica m. Vancouver Island. 
— scutellum m. Vancouver Island. 
— diaphana m. Vancouver Island. 
— splendida m. Vancouver Island. 
— dirupta m. Vancouver Island. 
— nigrescens (Greville). New species. Vancouver Island. 
— oregana (Greville). New species. Vancouver Island. 
