The specimens were typical, but in many bundles of trichites were 

 quite apparent distributed throughout the plasma. 



Habitat: Lehen (Oct.), Kandel (Nov.). In both cases it was found 

 in very small numbers. 



La cry m ari a Eh rbg . 

 Two species of this genus were found, Lacrymaria ohr and Lacry- 

 niaria coronata^ var., aqua dulcis. 



Lacrymaria ohr 0. F. Müll. 



Body medium or large, length 100—400 a. 



The length of this species depends so much on the state of exten- 

 sion of the neck that it is difficult to give exact figures. The neck was 

 measured in several specimens and it varied from 80 — 140 i^i in length. 

 The largest specimen measured was 350 (.l in length, but Schewiakoff 

 records a length of 500 (.i. 



Habitat: Universitätswiese (Nov.), Kandel (Nov.), Lehen (Oct.), 

 Altwasser Breisach (Dec). 



Lacrymaria coronata Cl. et L., var. aqua dulcis Boux. 



Body medium, length 64 — 90 ^t«, breadth 20 — 25 /<. 



The specimens agree very closely with the description given by 

 Boux except that several of them fall below Boux's minimum of 10 «, 

 and that the cilia appear not so regulary arranged as in the description 

 given by Boux. The body was rendered opaque by the presence of 

 greyish black corpuscles. 



Habitat: Altwasser Breisach (Dec). Only two specimens of this 

 species ware found. 



Pr oro don Ehrbg. 



Two species of this genus were found, Prorodon niveus and Pro- 

 rodon teres. 



Prorodon niveus Ehrbg. 



Body very large, length 280—500 ^<, breadth 120—200 ^/. 



The specimens were typical, and I am able to corroborate Sche- 

 wiakoff's assertion that the pharynx is present, but very small and 

 flattened. The specimens measured varied in length from 295 — 380 ^. 



Habitat: Kandel (Nov.), Elsasser Breisach (Dec). 



Proi'odon teres Ehrbg. 

 Body of medium size or large, length 80— 250 /y, breadth 50—170 a. 

 The specimens were typical, and were remarkable for the small 

 size of the Macronucleiis. 



Habitat: Waldsee Upper (Dec), Waldsee Lower (Dec). 



