80 THE LIFE OF DEVILS LAKE 



Epistylis branchiophila. "Among algae near the head of 

 Creel Bay." 



Carchesium epistylidis. "Among algae from Creel Bay." 



Zoothamnium alterans. "Among Ruppia and algae from Stump 

 Lake." 



Zoothamnion sp. Fairly common and widely distributed. 

 Among Ruppia in Main, Stump and East Lakes. 



Vaginicola crystalUna. "Numerous among algae from East 

 Lake, also taken from Stump Lake and from the north end of 

 the main lake." 



Cothurnia imherhis. "Commonly attached to floating diatoms, 

 from dredged material and also among Ruppia in Creel Bay. Also 

 taken from Stump Lake." 



Cothurnia curva. "Among Ruppia at the north end of the 

 main lake." 



Podophyrya Uhei-a. "Numerous at east side of the main lake." 



Podophyrya sp. "Attached to algae from the main lake." 



Sphaerophrya ynagna. "From Stump Lake and the east side 

 of the main lake." 



Acineta sp. "From floating material in the main lake and 

 also among algae from Stump Lake." 



Acineta sp. "Attached to algae from Stump Lake. Commonly 

 feeding on XJronema. ' ' 



Species incertae sedis 



Triiuastigidae gen. "Numerous among Ruppia from Creel 

 Bay." 



Fam. and gen. An undetermined ciliate was found by Pro- 

 fessor Edmondson at the "surface of the main lake and among 

 Ruppia and algae. ' ' 



Genus sp. A small green flagellate sometimes occurs in large 

 numbers attached to Pedaliou, and probably to other rotifers. It 

 is flexible but not ameboid ; in form ovoid, stipitate. It bears a 

 single anterior flagellum, which is vibratile thruout its length, and 

 which about equals the body jn length, and is inserted near the 

 bottom of a depression, one side of which projects forward as an 

 overhanging lip, and which in depth about equals one third the 

 length of the body. 



There is a single vacuole situated posteriorly. Staining with 

 magenta brings out a number of dark granules, but 1 have not been 

 able to differentiate any definite nucleus. Nor have I determined 

 the form of the chromatophore, the entire cell appearing filled with 

 chlorophyl. There is no eye spot. Measurements of three speci- 

 mens (exclusive of the stalk) follow: .0049x.0033, .0057x.0024, .0057x 

 .0024 mm. 



