r 



210 MARINE AND FISHERIES 



5 GEORGE v., A. 191 5> 



Characium naegelii A. Braun. Common on other algae, particularly on Conferva 



bombycina throughout the peninsula. 

 Characium ambiguum, Hermann. On Conferva bombycina in swale near Colpoy's 



Bay, June 20th. 

 Rhaphidium falcatum, Cooke. Swamp, Mar road, June 5; Ditch, near Boat Lake, 



June 16; Pool, Hope Bay, June 8; Shore of Lake Huron at Oliphant, June 14. 

 Rhaphidium falcatum aciculare, Hansgirg. Swale, Colpoy's Bay, May 20; Pool 



near Colpoy's Bay, May 30; common in swamp near Golden Valley, June 1. 

 Nephrocytium agardhianum, Naegeli. Swamp on Mar road, June 5. 

 Tetraedron minimum, Hansgirg. Pool, Hope, June 8; small stream, Oliphant, 



June 14. 

 Scenedesmus bijuga, Wittrock. Pool, Hope Bay, June 8; Pond on Commons,. 



Colpoy's Bay, May 11 

 Scenedesmus obliquus, Kuetzing. A common plankton form throughout the 



Peninsula. 

 Scenedesmus quadricauda, Brebisson. A common plankton form throughout 



the region. 

 Scenedesmus quadricauda abundans, Kirchener. Pool, McGregor's Harbour 



Cape Crocker, May 30; Ditch, near Boat Lake, June 16. 

 Coleastrum proboscideum, Bohlin. Swale, near Colpoy's Bay, June 5; Marshy 



Oliphant, June 14. 

 Sorastrum spinulosum, Naegeli. Scarce, in collection from a pool at Hope Bay,. 



June 8. 

 Hydrodictyon reticultaum, Lagerheim. Forming a sheet over the surface of a. 



large pool at edge of swale near Colpoy's Bay, June 5. 

 Pediastrum boryanum, Meneghini. A very common plankton form throughout 



the Peninsula. 

 Pediastrum tetras, Ralfs. Scarce, in collection from a marsh at Oliphant, June 



14; Pool, Hope Bay, June 8. 

 Ulothrix aequalis, Kuetzing. This species and Ulothrix zonata are the commonest 



filamentous forms on the rocks of the shores of Georgian Bay. They occur 



in patches consisting of one species only. Gametes were mature on April 30. 

 Ulothrix zonata, Kuetzing. Common, on rocks along shores of Georgian Bay; 



fruiting on May 7. 

 Oedogonium capilliforme, Kuetzing. Swale, Colpoy's Bay, June 5. 

 Chaetosphaeridium globosum, Klebahn. On Oedogonium capillifornie in swale, 



Colpoy's Bay, June 5. 

 Chaetophora elegans, Agardh. Forming globular gelatinous masses about 5 mm. 



diameter on stones in a pool on the Cape Croker road, May 30; forming light 



green spheres from extremely minute size up to 1 mm. diameter on sticks at 



edge of a willow swale near Colpoy's Bay, June 5. 

 Chaetophora incrassata, Hazen. Attached to a log in a ditch, near Wiarton, May 



12; common on stones at bridge over Patanelly River, near Mar, June 1. 

 Stigeoclonium lubricum, Kuetzing. Common in a little stream from a spring near 



Wiarton, May 5. 



