Plate 83 

 Fig. 1. Trachelomonas volvocina Ehrenberg, x 938 



Figs. 2, 3. Trachelomonas volvocina var. compressa Drezepolski: 

 2, X 1500; 3, X 1125 



Figs. 4, 5. Trachelomonas varians (Lemm. ) Deflandre, x 885 



Fig. 6. Trachelomonas triangularis Deflandre, x 1500 



Figs. 7, 8. Trachelomonas volvocina Ehrenberg fa., x 750 



Fig. 9. Trachelomonas rotunda Swirenko, x 885 



Fig. 10. Trachelomonas intermedia Dangeard, x 885 



Fig. 11. Trachelomonas cylindrica Ehrenberg, x 885 



Fig. 12. Trachelomonas volvocina var. punctata Playfair, x 



1500 



Fig. 13. Trachelomonas acanthostoma (Stokes) Deflandre, x 



885 



Figs. 14, 15. Trachelomonas lacustris Drezepolski, x 938 



Figs. 16, 17. Trachelomonas Kelloggii ( Skv. ) Deflandre, x 885 



Figs. 18, 19. Trachelomonas ahrupta ( Swir. ) Deflandre, x 885 



Fig. 20. Trachelomonas cylindrica Ehrenberg, x 885 



Fig. 21. Trachelomonas Dybowskii Drezepolski, x 1500 



Figs. 22, 23. Trachelomonas pulcherrima Playfair, x 885 



Figs. 24, 25. Trachelomonas pulcherrima var. minor Playfair, x 1050 



Fig. 26. Trachelomonas arrnata var. Steinii Lemmermann, x 



1125 



Fig. 27. Trachelomonas armata var. longispina ( Playf . ) De- 



flandre, x 975 



Fig. 28. Trachelomonas pulchella Drezepolski, x 975 



Fig. 29. Trachelomonas rohusta Swirenko, x 1125 



Fig. 30. Trachelomonas hispida var. coronata Lemmermann, 



x885 



Fig. 31. Trachelomonas hispida var. crenulatocollis fa. recta 



Deflandre, x 900 

 Fig. 32. Trachelomonas armata (Ehrenb.) Stein, x 1125 



Fig. 33. Trachelomonas armata fa. inevoluta Deflandre, x 900 



Fig. 34. Trachelomonas superha var. Swirenkiana Deflandre, 



x900 

 Fig. 35. Trachelomonas hispida (Perty) Stein, x 885 



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