EXPLANATION OF PLATE V. 



P^DOFHYLAX DISPAR, 1%. Sp. 

 Page 223. 



Fig. 50. Posterior segmeuts, X 130. 



Fig. 51. Seta with short appendix, X 750. 



Fig. 52. Seta with longer capillary appendix, X 750. 



Fig. 53. Same as 52, different view, X 750. 



Fig. 54. Simple seia, slightly curved, X 750. 



Fig. 55. Simple seta, more carved, X 750. 



Nereis irritabilis n. sp. 



Page 231. 



Fig. 56. Head and extended proboscis, X 20. 

 Fig. 57. Proboscis, ventral view, X 20. 

 Fig. 58. Foot from 7tli segment, X 20. 

 Fig. 59. Foot from 30th segment, X 20. 

 Fig. 60. Foot from 50th segment, X 20. 

 Fig. 61. Foot from 70th segment, X 20. 

 Fig. 62. Foot from 160th segment, X 20. 

 Figs. 63, 64. Setae, x 450. 



