66 A CATALOG OF ILLINOIS ALGAE 



— Illinois River; Topeka — Quiver Creek (Dec, Jan.)- Purdy 



1930, p. 68: Will, Lockport— DesPlaines River (Oct.). 

 N. siNUATA (W. Sm.) Grun. Boyer, loc. cit., p. 506 (1927). 



Thomas & Chase 1887, p. 330: Cook, Chicago— Lake Michigan. 

 N. SINUATA var. tabellaria Grun. Hustedt in Pascher, Suesswass.- 

 fl. Mitteleur. 10:409. f. 782 (1930) ; Mills, Index Diat., pp. 1234, 1237 

 (1934). 



Thomas & Chase 1887, p. 330, as N. tabellaria: Cook, Chicago — 



in Lake Michigan. 

 N. VERMicuLARis (Kuetz.) Hantz. Boyer, Proc. Acad. Nat. Sci. Phila. 

 79 (Suppl. 2): 514 (1927). 



Thomas & Chase 1887, p. 330: Cook, Chicago— Lake Michigan. 



Family: SURIRELLACEAE 

 CAMPYLODISCUS Ehrenberg, 1840 



C. NORicus Ehr. Boyer, loc. cit., p. 554 (1927). 



Thomas & Chase 1887, p. 328: Cook, Chicago— Lake Michigan. 



CYMATOPLEURA W. Smith, 1851 



C. ELLIPTICA (Breb.) W. Smith. Boyer, loc. cit., p. 532 (1927); Mills, 



Index Diat., p. 1450 (1934). 



Sphinctocystis elliptica (Kuetz.) Kuntze 



Eddy 1934, p. 387, as Sphinctocystis elliptica: Champaign, 

 Mahomet — Sangamon River (May, Sept.). Briggs 1872A, p. 43; 

 Thomas & Chase 1887, p. 328; Eddy 1927B, pp. 208, 215, 221, 

 as Sphinctocystis elliptica; Daily 1938, p. 79: Cook, Chicago, 

 Evanston — Lake Michigan (July). 



C. ELLIPTICA var. HiBERNiCA (W. Sm.) Hust. Hustedt in Pascher, 



Suesswass.-fl. Mitteleur. 10: 427 f. 827 (1930); Mills, Index Diat., 



p. 537 (1934). 



Cymatopleura hibernica W. Smith 



Thomas & Chase 1887, p. 328, as C. hibernica: Cook, Chicago- 

 Lake Michigan. 



C. ELLIPTICA f. SPIRALIS (Chasc) Boy. Boyer, Proc. Acad. Nat. Sci. 



Phila. 79(Suppl. 2) : 533 (1927) ; Mills, loc. cit., pp. 536, 540 (1930). 

 Cymatopleura spiralis Chase 



Thomas & Chase 1887, p. 328, as C. spiralis: Cook, Chicago- 

 Lake Michigan. 



C. SOLEA (Breb.) W. Smith. Boyer, loc. cit., p. 532 (1927). 

 Sphinctocystis librilis Hass. 



Babcock 1872A, p. 13; 1872B, p. 104; Briggs 1872A, p. 43; 

 Thomas & Chase 1887, p. 328; Jelliffe 1893, p. 311 (Cook). 

 Kofoid 1903, p. 516; 1908, p. 49 (Mason). Eddy 1927B, pp. 208, 



