16 



Stromhilidium gyrans Stokes. 



Body small, length 60—63 //, breadth 38—40 //. 



This species seems at times to be fixed by a thread and revolving 

 with remarkable velocity round its longitudinal axis. The posterior part 

 is marked by a number of longitudinal stripes. The macronucleus is 

 placed transversally in the anterior portion and at first appears to con- 

 sist of two parts, but these are found to be joined by a thinner portion. 



Habitat: Kandel (Nov.) 



Strombidi II m Cl. et L. 

 Of this genus the two species, Strombidium turbo, Strombidium 

 viride, were found. 



Strombidium turbo CI. et L. 

 Body very small, length 35 — 40 //, breadth 28 — 30 (.i. 

 The specimens were typical. Trichocysts absent. 

 Habitat: Waldsee Upper (Nov., Dec). 



Strombidium viride Stein. 

 Body small or of medium size, length 65 — 80 (.i, breadth 40— 45 a. 

 The specimens were typical, but contained green 

 and brown fragments. The macronucleus was sphe- 

 rical in almost all the specimens. The majority of 

 the specimens were in a sheath or cyst which is 

 brownish in colour and roughly cylindrical in shape. 

 Habitat: Universitätswiese (Nov.). 



Halteria Cl. et L. 



Fig. 2. Cyst of Of this genus the single species, Halteria gran- 



Strombidium viride. j- n s. j 



dmella was found. 



Halteria grandineUa 0. F. Müll. 

 Body very small, length 30—40 (.t. 

 The specimens did not differ from the type. 

 Habitat: Brunnen Herdern (Dec), Altwasser Breisach (Dec). 



Tintinnidium Kent. 

 Of this genus only one species, Tintinnidium fluviatile was found. 



Tintinnidium fluviatile Stein. 

 Body of medium size, length 80, breadth 16 u. 

 The specimens agreed closely with the description of Tintinnidium 

 fluviatile. The sheath was transparent, mucilaginous and with an uneven 



