BOTANY AND ZOOLOGY OF CHINA 193 



Trachelomonas hexangulata Swir. var. sinica nov. var. (see 

 Fig. 18). 



Lorica brown, dotted, in the lower part covered with 

 spines. The tube-like neck is serrated. Lorica is 35 

 microns in length. 



Trachelomonas acuminata (Schmarde) Stein. 

 Trachelomonas ornburgika Swir. var. punctata nov. var. 

 (see Fig. 9). 



Lorica brown, dotted, of 28 Microns in length. 

 Trachelomonas irregularis Swir. var. minor Swir. 

 Trachelomonas regularis (Lemm.) Skvortz. var. asperum 



Skvortz. forma, (see Fig. 10). 

 Trachelomonas fluviatilis Lemm. var. levis (Lemm.) nob. 



(=Jr. affinis var. levis Lemm.) 

 Trachelomonas elongata nov. sp. (see Fig. 19). 



Lorica brown, covered with knobs or dots, elongate, 



with the rounded end. The upper part is contracted 



and passes directly into the neck. The tube-like neck 



is serrated. 

 Trachelomonas minuta nov. sp. (see Fig. L3). 



Lorica brown, smooth, oval, contracted at the end. 



Trachelomonas valvocina, subglobosa Lemm. differs 



from this form by its broad round end. Lorica is of 



10-15 microns in length and 8-13 microns in breadth. 

 Trachelomonas minutanov. sp. var. granul at a nov. var. (see 



Fig. 17). 



Lorica brown, dotted and covered with round knobs. 



Phacus caudata Hiibner. ver. undulata nov. var. (see 



Fig. 7). The form with hollow sides, of 73-77 microns 



in length and 20-23 microns in breadth. 

 Phacus curvicaude Swir. var. undulata nov. var. (see Fig. 5). 



Cellule flat broad with hollows in the sides and with 



one paramilon. 

 Phacus longicauda (Ehrenb.) Duj. var. Crevicauda nov. 



var. (see Fig. 6). 



A variety which differs from the typical form by a 



short tail. 

 Phacus orbicularis Hiibner, var. undulata Skvortz. (see 



Fig. 1). 

 Phacus longicauda (Ehrenb.) Duj. 

 Phacus longicauda (Ehrenb.) Duj. var. torta Lemm. 

 Phacus oscillans Klebs. 

 Phacus pyrum (Ehrenb.) Stein. 

 Phacus parvula Klebs. 

 Phacus pleuronectes (O.F.M.) Duj. 

 Phacus acuminata Stokes. 

 13 



