102 NOTES ON THE AGRICULTURE, BOTANY 



Tr. Fluviatilis Lemm. var. curta nov. var. PL I, Fig. 31. 

 Lorica light-brown, smooth with a very broad middle part. 

 The neck is serrated of 2.5 microns in breadth. Lorica is of 

 22 microns in length and 16 microns in breadth. 



Var. glabra nov. var. PL II, Fig. 11. Lorica light-brown 

 and roughened. The neck is sloped, of 5 microns in breadth. 

 Lorica of 26 microns in length and 14.1 microns in breadth. 



Tr. Swirenko Skvortzow var. pulchra nov. var. PL II, 

 Fig. 17. Lorica brown, covered with knobs and dots. The 

 lower part is rounded with a spine on the end. Lorica of 

 40 microns in length and 23 microns in breadth. The neck 

 is of 6 microns in breadth. 



Tr. inplatus nov. sp. ( = Trachelomonas sp. in "The 

 Materials on Flagellata of Manchuria," by B. W. Skvortzow, 

 PL I, Fig. 16. Lorica of the type of Trachelomonas Swir- 

 enko Skwertz, but is distinguished by a neck being distinct 

 from the lorica. The surface is brown, covered with dots. 

 Lorica is of 47 to 49 microns in length and 19 to 21 microns 

 in breadth. The neck is of 5:5 to 6 microns in length and of 

 4 to 4.5 microns in breadth. 



Tr. Zmiewika Swir. var. hispida nov. var. PL II, Fig. 14. 

 Lorica is light brown, covered with very small spines. 

 Lorica is of 48 microns in length, 27 microns in breadth. 

 The neck is of 6 microns breadth. 



Tr. tambowica Swir. var. granulata nov. var. PL I, 

 Fig. 30. Lorica light covered with rounded knobs. Lorica 

 is of 45 microns in length and of 20 microns in breadth. The 

 neck is of 5.4 microns in breadth. 



Tr. sp. PL I, Fig. 28. Lorica oval, brown, covered with 

 small pits. The upper part passes directly to the neck. 

 Lorica is of 26 microns in length and of 19 microns in 

 breadth. The neck is of 3.9 to 41 microns in breadth. 



Tr. sp. PL II, Fig. 12. Lorica is very elongate, brown, 

 dotted and covered with sharp-pointed spines. Lorica is 

 of 40 microns in length and of 27 microns in breadth. The 

 neck is of 4 microns in breadth. This type is related to the 

 Tr. horrid a Palmer. 



EXPLANATION OF THE PLATES. 

 Plate I. 



Fig. 1. Trachelomonas spiralis Skvortzow. 



2. Tr. sp. a type related to Tr. intermedia and Tr. Borodiana. 



3. Tr. verrucosa var. ornata Skvortzow. A elongate form. 



4. Tr. incerta var. punctata Skvortzow. 



5. Tr. armata var. punctata Swir. 



6. Tr. kelloggii var. ejfigurata Skvortzow. 



7. Tr. kelloggii Skvortzow. 



8. „ ,$ „ 



9. Tr. reticulata var. amphora (Swir.) Skvortzow. 



