368 



300 Fig. 155. Parathetnisto (Euthemisto) gaudichaudi (Guerin, females (after Sars, 1890). 



a — -f. bispinosa; b—f. compressa. 



proximal part of its posterior margin is finely denticulate. Pereopods II 

 are longer than pereopods I; the 5th segment is distally broadened and 

 its distal process extends to 1/2-4/5 the length of the slightly tapering 

 6th segment; both margins of this process bear long strong setae and a 

 much stronger seta occurs at the apex; in the 6th segment the posterior 

 margin is very finely denticulate; the strong, almost straight claw is half 

 the length of the 6th segment and finely denticulate in the proximal 

 part of its posterior margin. The 4th segment of pereopods III is notably 

 narrower and about half the length of the broadly oval 5th segment; 

 the maximum width of the 5th segment is 1/2 its length in males and 

 2/3 in females, and the posterior margin more convex and armed with 

 strong setae; ornamentation of the 5th segment is weaker in females 

 than in males; the 6th segment is much narrower, slightly curved and 

 approximately the same length or somewhat longer than the 5th segment; 



