PLATE LVIII. 



Benthesicymus altus (p. 336). 

 Fig. 1. Lateral view. 

 ,, la. Ophthalmopod. 

 „ lz. Telson. 

 „ ibr. Section of branchial plume. 



Benthesicymus mollis (p. 339). 

 „ 2. Lateral view. 

 „ 2z. Telson. 

 ,, 2br. Section of branchial plume. 



Gennadas intermedins (p. 343). 

 „ 3. Lateral aspect. 

 ,, 3z. Telson. 

 „ 36r. Section of branchial plume. 



