THE EUGLENOIDINA OF OHIO 373 



The forms thus far observed by the writer from Ohio are 

 larger than any hitherto recognized, with L. 150/x and D. 20/x. 



Ohio, Gambier (Acad. Pond, Bishops Pool) ; E. Swamp, S. 

 Bass Island, and Portage River (Jennings) ; Sandusky, L. Erie, 

 basket Factory Cove (Landacre). 



35. E. fusca (Klebs), (Fig. 2, PI. XV). 



Elongate band-like in form, gradually narrowed posteriorly 

 with short tip, weakly metabolic ; periplast dark brown to black 

 with longitudinal rows of distinct punctuations ; flagellum as long 

 as body; chromatophores numerous, discoid; pyrenoids absent; 

 paramylon in the form of 2 large annular granules, anterior (?) 

 and posterior to the nucleus. 



Reproduction by longitudinal (?) division and by cysts without 

 gelatinous covering. 



L. 90-225/.,. D. 23-27.5//. 



Distribution, Europe. 



This was originally described as a variety of E. spv^ogyra by 

 Klebs but later given a specific rank by Lemmerman, 



36. E. ehrenbergii Klebs (Fig. 3, PI. XV). 



Elongately band-like in form with rounded ends, decidedly 

 metabolic ; periplast weakly striate spirally ; flagellum less than 

 length of body ; chloroleucites numerous, discoid ; pyrenoids ab- 

 sent (?) ; paramylon in the form of elongate cylindrical rods which 

 at times are somewhat flattened or even discoid. 



Reproduction ( ?) . 



L. 290/x. D. 26//. 



Distribution, Europe. 



*37. E. truncata; n. sp. (Fig. 4, PL XV). 



Elongately cylindrical or band-like in form, slightly metabolic 

 and often assuming a twisted appearance ; periplast spirally 

 striate ; flagellum less than length of body ; nucleus anterior, oval ; 

 posteriorly body normally emarginate or truncate ; chloroleucites 

 numerous, discoid, 2.5// in diameter; pyrenoids apparently absent; 

 paramylon with large granules absent, but with many small gran- 

 ules about 1.5/1 in diameter and 2// in length. 



Reproduction ( ?). 



L. 175^. D. 27-29//. 



