PHYTOMONADINA 281 



K. guttula P. (Fig. 113, e). 6-lOyu by 5m; brackish water. 



Genus Furcilla Stokes. U-shape, with 2 posterior processes; in 

 side view somewhat flattened; anterior end with a papilla; 2 flagella 

 equally long; 1-2 contractile vacuoles anterior; oil droplets; fresh 

 water. 



F. lobosa S. (Fig. 113,/). 11-14 M long; fresh water. 



Genus Hyalogonium Pascher. Elongate spindle-form ; anterior end 

 bluntly rounded; posterior end more pointed; 2 flagella; protoplasm 

 colorless; with starch granules; a stigma; asexual reproduction re- 

 sults in up to 8 daughter cells; fresh water. 



H. klebsi P. (Fig. 113, g). 30-80/x by up to 10m; stagnant water. 



Genus Polytoma Ehrenberg (Chlamydoblepharis France; Tussetia 

 Pascher). Ovoid; no chromatophores; membrane yellowish to 

 brown; pyrenoid unobserved; 2 contractile vacuoles; 2 flagella 

 about body length; stigma if present, red or pale-colored; many 

 starch bodies and oil droplets in posterior half of body; asexual re- 

 production in motile stage; isogamy (Dogiel, 1935); saprozoic; in 

 stagnant fresh water. Genetics (p. 231). 



P. uvella E. (Figs. 8, c; 97, a, b; 113, h). Oval to pyriform; stigma 

 may be absent; 15-30/x by 9-20m- Cytology (Entz, 1918; Hollande, 

 1942). 



Genus Parapolytoma Jameson. Anterior margin obliquely trun- 

 cate, resembling a cryptomonad, but without chromatophores; with- 

 out stigma and starch; division into 4 individuals within envelope; 

 fresh water. 



P. satura J. (Fig. 113, i). About 15m by 10m; fresh water. 



Family 2 Trichlorididae 



Genus Trichloris Scherffel and Pascher. Bean-shape; flagellate 

 side flattened or concave; opposite side convex; chromatophore 

 large, covering convex side; 2 pyrenoids surrounded by starch 

 granules; a stigma near posterior end of chromatophore; nucleus 

 central; numerous contractile vacuoles scattered; 3 flagella near 

 anterior end. 



T. paradoxa S and P. (Fig. 113, j). 12-15/x broad by 10-12 M high; 

 flagella up to 30m long. 



Family 3 Carteriidae 



Genus Carteria Diesing (Corbierea, Pithiscus Dangeard). Ovoid, 

 chromatophore cup-shaped; pyrenoid; stigma; 2 contractile vacuoles; 

 fresh water. Numerous species (Pascher, 1925, 1932; Schiller, 1925). 



