Fig. 8

Adult and manca 1 pleopods of Ar. cf. ellipticus. A, D SEM observation. Dorsal view of the exopods of the pleopods in adults (A) and manca 1 (D). B, E Enlarged views of the proximal side in adults (B) and manca 1 (E). Arrowheads indicate swollen ridges. C, F Transverse sections of the pleopods in adults (C) and manca 1 (F). Arrowheads indicate proximal hemolymph sinus. Crossed arrows indicate dorsal–ventral and proximal–distal axis. Hs hemolymph sinus