368 OHIO BIOLOGICAL SURVEY 



Distribution, East India, Lahore. 



A species apparently quite distinct by reason of flask-like cysts 

 and development of haematochrome, 



-21. E. variabilis Klebs (Fig. 8, PI. XIII) . 



Cylindrical, short, rounded anteriorly, decidedly metabolic; 

 periplast strongly striate spirally; flagellum 2-3 times length of 

 body; nucleus (?) ; stigma large, dark red; chloroleucites disciform, 

 without pyrenoids; paramylon one large granule anteriorly, many 

 small granules (?). 



Reproduction by division while provided with thin gelati- 

 nous envelope. 



L. 30-46/x. D. 9-13;u. 



Distribution, cosmopolitan. 



Gambler, 0., Hotel Hill Spring. A form which may at least 

 be placed as a variety of the above, although not agreeing in detail 

 with the figure from Klebs. 



22. E. gracilis Klebs (Fig. 9, PI. XIII). 



Cylindrical to bluntly oval without pronounced tip, decidedly 

 metabolic; periplast spirally striate; flagellum about length of 

 body; nucleus central; chloroleucites 12-15 in number, disciform 

 with irregular margin; with pyrenoids; paramylon absent(?). 



Reproduction by division while provided with thin gelati- 

 nous membrane. Encystment with thick gelatinous membrane. 



L. 37-45^. D. 6-22/x. 



Distribution, France, Potiers. 



A small but exceedingly active species. 



-23. E. torta Stokes (Fig. 10, PI. XIII). 



Elongately fusiform with tip twisted, not metabolic (?) ; 

 flagellum as long as body; periplast smooth; chromatophores( ?) ; 

 pyrenoids (?) ; paramylon in the form of 2 long rod-like granules 

 anterior and posterior to the nucleus. 



Reproduction by division. 



L. 63/x. D.(?). 



Distribution, United States. 



This species described by Stokes is closely allied to E. trip- 

 teris and may prove identical with that form. 



Ohio. Milford Center. 



