428 



347 Fig. 186. Phronimella elongata (Claus) 



(after Shih and Dunbar, 1963; Us of %, c/"— after Shih, 1969). 



348 Size of females 9-20 mm, of males 7.5-12 mm. 



Antennae I and II are well developed in males, their flagellum 14-to 

 16-segmented. antennae II are slightly shorter than antennae I. 



Pereopods III are the longest; the 2nd segment bears two-three den- 

 ticles on the posterior margin, in males often without denticles; the 6th 

 segment in males is longer than the 2nd, in females these segments are 

 approximately equal. The 2nd segment of pereopods IV has three-four 

 denticles on the posterior margin. Pereopods V In females are long and 

 narrow, longer than pereopods IV; pereopods V are stronger, broader, 

 and shorter in males than in females, and slightly shorter than pere- 

 opods TV; the anterior margin of the 2nd-5th segments of the pereopods 

 is armed with strong denticles and denticles are also developed on the 

 distal margin of the 5th segment; the 6th segment is bent forward and is 

 half the length of the 5th (in males it may be longer). 



Somite I of the pleon is longer than the last somite of the pereon. 

 Uropods II in females are reduced to an acute appendage falling far 

 short of the distal margin of the last urosomite. Uropods II in males are 

 considerably shorter and thinner than uropods I and III, biramous, and 

 have a very short endopodite. Sometimes males are found with reduced 

 uropods II, as in females (Shih, 1969). 



