208 



174 24. Scina excisa Wagler, 1926 (Fig. 85) 



Wagler, 1926: 398, 1927: 103. 



Length of sexually mature specimens 4-7 mm. 



The body is smooth and without keels. Antennae I are strong, some- 

 what shorter than the pereon or equal to it in length. The mouth cone 

 is small. The protopodite of the maxillipeds is greatly broadened at the 

 base; the outer lobes are oblong-oval; the inner lobes are 1/5-1/4 the 

 length of the outer, with two strong apical setae. 



In pereopods I the 5th and 6th segments together are equal to the 2nd 

 in length; the 5th segment is appreciably longer than the 6th; the claw is 

 long, thin, and almost straight. Pereopods II are weaker, the difference 

 in the length of the 5th and the 6th segment is less; the claw is long and 

 thin. Pereopods III and IV are identical in structure, long, and thin; the 

 5th segment is slightly longer than the 4th, which in turn is somewhat 

 longer than the 6th segment; the claw is medium in length and slightly 

 curved. The 2nd segment of pereopods V is slightly broadened distally; 

 its anterior margin is armed with long curved denticles while the distal 

 angle is stretched into a long process reaching beyond the distal margin 



Fig. 85. Scina excisa Wagler (after Wagler, 1926). 



