648 Wisconsin Academy of Sciences, Arts, and Letters, 
Arthrodesmus quiriferus W. & G. S. West. 
Jour. Linn. Soc. Bot. 35: 542. pi. 17, figs. 9-10. 1903. 
I. Speese (rr), Squirrel (rr). 
Arthrodesmus subulatus Kiitzing. 
Species algarum 176. 1849; W. & G. S. West, Trans. Linn. Soc. Bot. 2nd. 
Ser. 5: 72. pi. 9, figs. 32-33. 1895. 
II. George (rr), Meta (rr). 
Genus STAURASTEUM Meyen 1829. 
Staurastrum dickiei Ralfs. 
Brit. Desm. 123. pi. 21. f. 3. 1848. 
III. Beaverdam (rrr). 
Staurastrum megacanthum Lundell. 
Nova acta r. soc. sci. Upsaliensis. 3. Ser. 8: 61. pi. 4, f. 1. 1871. 
I. South Turtle (rr). 
III. Lac Court Oreilles (ss), Eeserve (sss), Whitefish (cc). 
var. scoTicuM W. & G. S. West . 
Jour. Linn. Soc. Bot. 35: 544. pi. 16, f. 8, 1903. 
III. Horseshoe (rr). Shell (c). 
Staurastrum orbiculare (Ehrenb.) Menegh. 
Linnaea 14: 225. 1840. 
III. Beaverdam (rrr). 
/Staurastrum mucronatum var. debaryanum (Nordst.) Turner. 
Kgl. Sv. Vet.-Ak. Handl. 25; no. 5: 105. pi. 16, /. 20. 1892. 
III. Silver (rr), Whitefish (rr). 
Staurastrum pilosum (Nageli) Archer. 
In Pritchard, Infusoria. 4th. Ed. 739. 1861; Cleve, ofvers. Kgl. Sv. Vet.- 
Ak. Forh. 20; No. 10: 490. pi. 4, f. 3. 1863 
III. Dummy (rrr). 
Staurastrum denticulatum (Nageli) Archer. 
In Pritchard, Infusoria. 4th. Ed. 738. 1861: W. & G. S. West, Trans. R. 
Ir. Acad. 33: See. B. 103. pi. 11, f. 11. 1906. 
III. Bear (r), Beaverdam (rr). Duck (r), Granite (rrr), Horseshoe (rr), 
Lac Court Oreilles (ss). Shell (ss), Whitefish (rr). 
