18<) ANNELIDA POLYCHAETA. 



EXPLANATION OF THE PLATES. 



Plate 7. 



Fig. 1. Sixteenth foot of Nereis Oliveirae Horst, atocous 



form, x 15 diam. 

 » 2. Ninetieth foot of the same, x 15 diam. 

 » 3. Fifty-fourth foot of the same species , epitocous 



form (9). x 15 diam. 

 » 4. Dorsal side of the anterior region of the same, 



with proboscis extruded, x 4 diam. 

 » 5. Ventral side of the proboscis of the same, x 4 diam. 

 » 6. Eighth foot of Nereis ferox Hans, x 28 diam. 

 » 7. Sixtieth foot of the same. X 28 diam. 

 » 8. a. Falcate bristle; b. heterogomph setose bristle 



of the same, x 175 diam. 

 » 9. Eighth foot of ? Nereis Stimpsonis Gr. x 15 diam. 

 » 10. Sixtieth foot of the same, x 15 diam. 

 » 11. Falcate bristle of the same, x 175 diam. 

 » 12. Forty-second foot of Nereis macropus Clap. , 



epitocous form, x 15 diam. 



Plate 8. 



Fig. 1 . Nereis nigro-punctata Horst , epitocous form , with 

 proboscis extruded , from the dorsal side. X 2 diam. 



» 2. Twelfth foot of the same (cf). X 15 diam. 



» 3. Thirty-eighth foot of the same (<ƒ). x 15 diam. 



» 4. Twelfth foot of Nereis malayana Horst, epito- 

 cous form (9). x 15 diam. 



» 5. Fifty-second foot of the same (cf). x 28 diam. 



» 6. Hundred-thirty-fifth foot of the same (Q). x 28 

 diam. 



» 7. Anal region of the same (9)- X 15 diam. 



» 8. Ninth foot of Nereis minor Hans, x 28 diam. 



» 9. Forty-fifth foot of the same, x 28 diam. 



» 10. Falcate bristle of the same, x 175 diam. 



Notes from the Leyden Museum , Vol. JXI. 



