532 



Ake nordenstam 



and propodus, which are of about equal length. Merus with i or 2 setae near 

 each other on the lower distal margin. Carpus around the distal margin with 

 a circle of 8 broad setae. 



Pleopods normal. 



The uropods consist of 5 — 7 joints, of which the last is the smallest and 

 sometimes very minute. The longest female specimen, 4.1 mm, had 6 joints, 

 the last one short. The longest male specimen, 3.5 mm, had 7 joints in the 



Fig. 4. Tanais (Anatanais) lineatiis. a second pereiopod female, X 2CO. b third pe- 

 raeopod female, X 200. c seventh pereiopod female, X 197. 



uropods, the last joint minute. One small female, 2.5 mm in length, had 5 

 joints, of which the last joint was minute. One small male specimen, about 

 3 mm in length, had 6 joints, the last joint short. Still smaller male individ- 

 uals, 2 — 2.5 mm, have 5 — 6 joints in the uropods. In individuals with 5 

 joints the last one was the shortest, but it was not very much shorter than 

 the penultimate joint. This exemplifies the fact already pointed out by Van- 

 HOffen (19 14, in Tanais litoralis and gracilis), that the number of joints in 

 the uropods increases with age, and that the size of the terminal joint varies. 



