148 



127 



Fig. 54. Proscina birsteini Vinogradov, male (after Vinogradov, 1956). 



127 



Pereopods III and FV are alike in structure, their distally broadened 4th 

 segment slightly shorter than the linear 5th segment, which in turn is 

 longer than the thin 6th segment; the claw is short and curved. Pere- 

 opods V and VI are identical in length and structure, the 4th segment 

 longer than in the preceding pair of pereopods and equal to the 5th seg- 

 ment; the 6th segment is narrow, linear, and shorter than the 5th; the 

 claw is short, thick, and falcate. Pereopods VII are slightly shorter than 

 the preceding pereopods; the 4th segment is shorter than the 5th and 

 equal to the 6th. 



The length of the basipodites of the uropods decreases from I to III; 

 the basipodite of uropods HI is broad, shorter than both the rami; the rami 

 are elongated-lanceolate, in uropods I and II sharply differing in length 



