472 



PROCEEDINGS OF THE NATIONAL MUSEUM 



voii. 83 



in its short, blunt, pigmented parapodial lobes, as well as the anterior 

 prolongation of the prostoinium. It differs further in its dentition. 



FiGUUE 48. — Nereis {Nereis) neonigripes, new species : a, Anterior end in dorsal view, 

 X 11 ; &j tenth parapodium in anterior view, X 40 ; c, posterior parapodium in 

 posterior view, X 40 ; d, falcigerous homogomph notoseta, X 333 ; e, falcigerous 

 hcterogomph neuroseta, X 333 ; /, anterior end, in dorsal view of specimen with only 

 one antenna, X 40 ; ^, fortieth parapodium from specimen with abnormal prostomium, 

 X 40. 



NEREIS (NEREIS) EAKINI, new species 



Figure 49 

 Nereis pclagica Izuka, 1912 ; non Linnaeus. 



Measurements. — Length, 25-100 mm; width, 2-5.5 mm without 

 parapodia, 4-7 mm with parapodia ; number of segments, 42-78. 



