1917] 
MOORE—ALGAE OF DEVILS LAKE, NORTH DAKOTA 299 
dication of fruiting. With Tolypothrix and Anabaena flos- 
aquae. 
Order VOLVOCALES 
Family VoLvocacEAE 
Genus PANDORINA Bory 
Pandorina sp.? Sixteen-celled, non-motile colonies of what 
might have been Pandorina were obtained in one towing. 
The limited amount of material made any definite determina- 
tion impossible, and it is uncertain as to whether the colonies 
were really Pandorina or the resting stage of some unicellular 
alga. 
Family ТЕТВАЗРОВАСЕАЕ 
Genus rxEFFIGIATA W. & С. S. West 
Ineffigiata neglecta W. & G. S. West, Quart. Jour. Mie. бос. 
1897 : 503. 1897. Abundantly present in one towing. Doubt- 
fully present in two other towings. 
Order PROTOCOCCALES 
Family PROTOCOCCACEAE 
Genus cHaracium A. Braun 
Characium Hookeri (Reinsch) Hansgirg, Prod. Algenfl. 
von Bóhmen, Heft 1: 123. 1886-88. Abundant on living 
cyclops obtained by towing. Apparently the first record of 
this species in America. It agrees well with the published 
deseriptions, and examples of the gregarious habit figured by 
Reinsch were frequently observed. A single large pyrenoid is 
prominent. 
Family Әсем CEAE 
Genus coELAsTRUM Naegeli 
Coelastrum microporum Naegeli in A. Braun, Alg. unic. 
gen. nova vel minus сор. 70. 1855. Rare in towings. 
Genus DICTYOSPHAERIUM Naegeli 
Dictyosphaerium pulchellum Wood, Smithsonian Contr. to 
Knowledge 241:84. 1872. "Very common in almost all 
samples from towings. 
