SUBTERRANEAN AMPHIPOD STYGONECTES 



83 



Figure 19. — Stygonedes niontanus, new species. Male (8.25 mm), springs, Rich Mt., Ark.: 

 a,b, gnathopods 1,2; c, coxal plate of pereopod 3; d-g, pereopods 4,5,6,7; h,i, antennae 

 1,2; ;-/, uropods 1,2,3; m, telson; n, abdominal side plates. Female (9.00 mm), same 

 locality: o,p, gnathopods 1,2; q, uropod 3; r, telson. 



