376 OHIO BIOLOGICAL SURVEY 



2. L. sphagnophila Lemm. (Fig. 7, PI. XV). 



Oval, narrowed neck-like anteriorly, tip distinct; flagellum 

 about twice the length of the body ; periplast weakly striate 

 spirally. 



Reproduction ( ?) . 



L. 33/^. D. 12/A. 



Distribution, Europe. Sphagnum swamps and in Plankton. 



3. L. steinii Lemm. (Fig. 8, PI. XV). 



Short fusiform with tip distinct ; periplast with distinct striae 

 which are scarcely spiral. 



Reproduction (?). 



L. 22-30/x. D. 8-15;u. 



Distribution, Europe. Standing water and Plankton. 



A single variety is recognized by Lemmermann, var. svecica 

 Lemm., with the posterior end slightly enlarged near the tip and 

 with L. 24.5-26/^, D. 9.5-12/.. 



4. L. buetschlii Lemm. (Fig. 9, PI. XV). 



Oval with short tip ; periplast distinctly striate spirally ; fla- 

 gellum about 2 times length of body. 

 Reproduction ( ?) . 

 L. 34-38/..D. 21-23/.. 

 Distribution, Europe. Standing water. 



-5. L. teres (Schmitz), (Fig. 10, PI. XV). 



Oval to fusiform, broadest anteriorly and with short tip ; peri- 

 plast distinctly striate spirally ; flagellum 2 times length of body. 

 L. 34-38/x. D. 21-23/.. 

 Distribution, Europe. Standing water. 

 Gambler, 0. 



6. L. fusiformis (Carter), (Fig. 1, PI. XVI). 



Short and broadly fusiform ; periplast distinctly striate spi- 

 rally, flagellum about as long as body. 

 Reproduction ( ?) . 

 L. 25-36/.. D. 14-23/.. 

 Distribution, cosmopolitan. Standing water and Plankton. 



