PLATE LXXIII. 



Sergestes armatus (p. 401). 

 Fig. 1. Lateral aspect ; enlarged nine times. 

 ,, lb. First antenna. 

 „ lz. Telson. 



Sergestes edwardsii (p. 403). 

 „ 2. Lateral view ; enlarged twelve times 

 „ 2c. Second antenna ; scaphocerite. 

 ,, 2k. First pereiopod. 

 ,, 2br. Branchial plume. 

 „ 2br". Branch of branchial plume. 



Sergestes rinJrii (p. 404). 

 „ 3. Lateral view ; enlarged twelve times. 

 „ 3z. Telson. 



