366 OHIO BIOLOGICAL SURVEY 



lar; chloroleucites 20-30 in number, distinctly lobed ; pyrenoids 

 double shelled; paramylon( ?). 



L. 90-100/x. D. 25-30/x. 



Distribution, Europe and North America; Ohio, Gambler, 

 Brook, McElroy Farm, with filaments of Lyngbya. 



14. E. sociabilis Dang. (Fig. 1, PI. XIII). 



Fusiform with short tip, metabolic; periplast (?) flagellum 

 longer than body; nucleus (?) ; chloroleucites numerous — about 10 

 in number ; pyrenoids double shelled ; paramylon oval or rod-like. 



Reproduction by encystment with subsequent division result- 

 ing in spherical colonies of 2, 4, or 8 cells each with stigma and 

 nucleus distinct. 



L. 85/x. D. 25/x. 



Distribution, France. 



15. E. granulata (Klebs), (Fig. 2, PI. XIII). 



Fusiform with short tip, metabolic; pellicula spirally striate, 

 yellowish brown with distinct punctuations ; flagellum as long as 

 body ; nucleus central ; chloroleucites in the form of large disks 

 with slightly irregularly borders, each containing a prominent 

 pyrenoid ; paramylon ( ?) . 



Reproduction by encystment within a gelatinous envelope. 

 L. 60-90/x. D. 20-25/7,. 



Distribution, Europe. Cosmopolitan ( ?) 



The var. luteo Lemm. is colored light green. 



*16. E. polymorpha Dang. (Fig. 3, PI. XIII). 



Oval approaching cylindrical, metabolic with short tip ; peri- 

 plast striated spirally, light brown in color ; flagellum twice as long 

 as body; nucleus central (?) ; chloroleucites 15 or more in number 

 in the form of disks with irregular borders, each containing a 

 pyrenoid; paramylon oval, often absent. 



Reproduction, encystment spherical with gelatinous membrane. 



L. 80-90/x. D. 20-25/x. 



First found by Dangeard near Potiers in company with 

 E. sanguinea. 



Mirror Lake, 0. S. U., 0., from stems of Eleodea. Length 

 93^11. 



