45 



PHYLLOPODA 



CRUSTACEA. 



i. Apus, dorsal view. Carapace; backwardly projecting free portion of same; transverse 

 groove marking junction of these two parts ; eyes ; externally segmented posterior part of body ; 

 terminal setae. 



Ventral view. Notice that the anterior legs are pediform and stout, the posterior foliaceous and 

 delicate. The posterior six segments are without appendages. 



2. Appendage of Apus (typical Phyllopod appendage). Corm or axis of limb, bearing 6 endites, 

 and 2 exites the flabellum and bract. Endites 5 and 6 correspond to the exopodite and endopodite 

 of the appendages of Astacus, and the flabellum to the epipodite. In some legs there is an apical 

 lobe beyond the endite 6. 



