| Abstract: | ![]()
The gills of gammaridean amphipods consist of epipods on the coxa of peraeopods 2 to 6 and an exopod on the basis of peraeopod 7. Bilobed coxal gills are found on Gammaracanthus spp., lysianassoids and a few other species. Pleated and phyllobranchiate gills are found in some lysianassoids, dexaminoids and eusiroids. The trend in amphipods is towards a reduction in gill area through a loss of the outer lobe, simplification in gill structure, and a loss of individual gills. The reduction in gill area is associated with a decrease in body size. |
