PLATE XIII. 



Polycheles crucifcra (p. 127). 



Fig. 1. Dorsal aspect ; enlarged two and a half times. 



c. Anterior portion of the dorsal surface of the cephalon ; considerably en- 

 larged, showing both pairs of antennse (b, c), and the ophthalmopoda. 

 p. Pleon ; lateral view. 



a. Ophthalmopod seen from the front when the antennse, b and c, are 



removed. 



b. First antenna, the peduncle, viewed laterally. 

 i. Second gnathopod. 



o. Terminal joints of the posterior pair of pereiopoda. 



p. First pleopod of male. 



7. Second pleopod with two stylamblydes of male. 



