473 



Fig. 205. Lycaea pulex Marion (</ — after Stebbing, U 



Length of sexually mature crustaceans up to 7 mm. 



The head is higher than the pereon and anteriorly smoothly rounded; 

 its length is less than its height. 



The 2nd segment of pereopods I is 1 .5-2 times longer than wide and 

 has bulged anterior and posterior margins; the 4th segment is markedly 

 broadened distally; the subchela is well developed; the projecting apex 

 of the posterior distal angle of the 5th segment extends beyond the base 

 of the claw, the angle per se (without its projecting apex) is equal to 

 or somewhat longer than the straight posterior margin, the distal part of 

 the anterior margin is denticulate; the 6th segment likewise has a well- 

 developed posterior distal angle in which the margins are denticulate, 

 and the posterior margin of the segment finely denticulate; the claw is 



