Kilka uivag o organach rozrodczych rodzaju Chaetoga- 
ster v. Baer 1827, — Some remarks upon the reproductive 
organs in the genus Chaetogaster v. Baer 182 7. 
Note 
de M. M. KOWALEWSKt, 
présentée, dans la séance du 9 Octobre 1916, par M. M. Siedlecki m. c. 
The author examines the reproductive organs in Chaetogaster cry- 
stallinus Vejd. 1884, Ch. diaphanus Gruit. 1828 and Ch. diastrophus 
Gruit. 1828; he concludes that the organs in question in the three 
species alluded to, and even perhaps in all species belonging to the 
same genus, are almost identical, structurally and topographically. The 
description of these organs, as given by Vejdovskÿ (System und 
Morphologie der Oligochaeten, Prag 1884) is substantially correct,. 
