XI 



PHYLUM ARTHROPODA 



541 



of the eggs. The uropods are absent, so that there is no tail-fin. 

 The eye-stalks (^)are contained in orbits or sockets of the carapace, 

 which are so prolonged that the eyes appear to arise behind the 



FIG. 428. Typical Brachyura. (After Bell and de Haaii.) 



antennules and antennae. Both pairs of feelers are small, and the 

 bases of the antennules are contained in sockets orfossettes. The 

 third maxillipedes (mavp.) are broad, flat, and valve-like, not leg- 



