165 



140 



Fig. 60. Scina curvidactyla Chevreux female (after Wagler, 1926). 



5th; the claw is very small and somewhat curved. The claws of pereopods 

 VI and VII may not be as short and strongly curved as depicted in the 

 illustration. Specimens with almost straight claws have been found in the 

 Pacific Ocean and North and South Atlantic (Barnard, 1932; Shoemaker, 

 1945a; Vinogradov, 1960a). In sexually mature specimens the segments 

 are broader than in younger ones; the length ratios of the segments also 

 vary somewhat with age. 



Upropods I and II are finely denticulate on the posterior margin; 

 moreover, in uropods I the denticles are large. Uropods III have a smooth 

 posterior margin. The telson is triangular-oval; its maximum width is 

 almost equal to its length. 



Distribution: This is a circumtropical species, more strictly confined 

 to the warm-water zone than S. crassicornis. It is known from the Pacific, 

 Indian, and Atlantic oceans and the Mediterranean Sea. It is found from 

 44-49° N (Pacific Ocean in the zone of Kuroshio, Atlantic Ocean in the 

 zone of influence of the Gulf Stream) to 43° 20' S (southern Africa). 

 It inhabits the upper 1,000-1,500 m layer but adults rarely rise above 

 200 m. 



