EXPLANATION OF PLATE XLIX. 



Rotungus pictus, gen. et sp. n. 



Fio. I. — Dorsal view of the cephalon. 

 2. — Anterior view of the cephalon. 

 3. — Right antenna. 

 4 — First maxilla, terminal portions of the outer and inner 



lobes. 

 5. — First mesosomatic segment and cephalon. 

 6. — Left maxillipede, terminal portion. 

 7. — First left thoracic appendage. 



8. — Types of setae present on the 4th joint of the 2nd thoracic 

 appendage. 



9. — Left uropod, dorsal view. 



10. — Last metasomatic segment, telson and uropoda. 



