PLATE LXXIL 



Fig. 



1. Twentieth foot of the epitokous male Nereis cultrifera, Grube. X 15. 

 1 a. Thirty-seventh foot of the foregoing. X 12. 



1 b. Fifty-seventh foot of the same male. X 10. 



1 c. Foot of this form near tip of tail. X 15. 



2. First foot of Nereis Schmardsei, Be Quatref. (irorata, Malmgren). x 15. 



2 a. Tenth left foot of the same, from the front. X 15. 



2b. Sixty-fifth foot of a ripe epitokous female from St. Vaast (Prof. Grnbe's). X 15. 



3. First foot of Nereis Marioni, Aucl. and Edw. X about 14. 



3 a. Tenth foot of the same. X 15. 

 3 b. Thirty-seventh foot. X 15. 



3 c. Fifty- seventh foot, x 15. 

 3d. Sixty-eighth foot. X 15. 



4. First foot of Nereis Dumerilii, Aud. and Edw. X 15. 



4 a. Tenth foot. X abont 15. 



4 6. Thirty-seventh foot. X 21. 

 4 c. Fifty-seventh foot. X 13. 



4 d. First foot of epitokous form (male) of the same species from the surface in Castle 

 Bay, Barra, in May. X 21. 



4 e. Sixth left foot of an epitokous male. X 21. 

 4/. Thirty-seventh foot of the same male. X 18. 



5. First foot of Nereis diversicolor, 0. F. Muller, from St. Andrews. X about 21. 



5 a. Tenth foot of the same from Herm. x 15. 

 5 b. Thirty-seventh foot. X 15. 



