PHYTOMONADINA 



195 



Fig. 92. a, Carteria cordiformis, X600 (Dill); b, Pyramimonas tetra- 

 rhynchus, X400 (Dill); c, d, Polytomella agilis, XlOOO (Doflein); 

 e, Spirogonium chlorogonioides, X670 (Pascher); f, Tetrablepharis 

 multifile, X670 (Pascher); g, Spermatozopsis exultans, X1630 

 (Pascher) ; h, Chloraster gyrans, X670 (Stein) ; i, Polyblepharides singu- 

 laris, XS70 (Dangeard); j, k, Pocillomonas flos aquae, X920 (Stein- 

 ecke);l, m, Phacotus lenticularis, X430 (Stein); n, Pteromonas angu- 

 losa, X670 (West); o, p, Dysmorphococcus variabilis, XlOOO (Bold). 



spicuous; a pyrenoid; stigma anterior; 2 contractile vacuoles; 

 fresh water. One species. 



*S. chlorogonioides (P.) (Fig. 92, e). Body up to 25^1 by 15ju. 



Genus Tetrablepharis Senn. Ellipsoid to ovoid; pyrenoid pres- 

 ent; other characters are those of Polytoma; fresh water. 



T. multifilis (Klebs) (Fig. 92, /). 12-20^ by 8-1 5At; stagnant 

 water. 



Genus Spermatozopsis Korschikoff. Sickle-form; bent easily, 

 occasionally plastic; chromatophore mostly on convex side; a 

 distinct stigma at more rounded anterior end; flagella equally 

 long; 2 contractile vacuoles anterior; fresh water infusion. 



S. exultans K. (Fig. 92, g). 7-9/^ long; also biflagellate; in fresh 

 water with algae, leaves, etc. 



