MALE COPEPOD FROM GILLS OF CHINOOK SALMOX. 123 



pores and here he attaches himself and remains until after 

 fertilization. In Fig. I the male is seen attached to the middle 

 of the body of the female, while in Figs. 3 and 4 the male is at 

 the posterior margin of the female, in the vicinity of the genital 

 pores ready to fertilize her. 



Fertilization is accomplished by the male bending the posterior 

 portion of his body towards the genital pores of the female. 

 Then the male extrudes his two spermatophores through the 

 ejaculatory pores, and by means of the second maxillae he attaches 

 these near the genital openings of the female. The spermatozoa 

 soon wander through these openings and become stored in the 

 spermatheca of the female. After the migration of all the 

 spermatozoa, the spermatophores shrivel up and come to look 

 like transparent, shell-like, yellowish spheres. Very shortly after 

 fertilization the male dies, while the female lives on and develops 

 a great many young, which are capable of carrying on the life- 

 history of the species. In order to insure fertilization, it is by 

 no means uncommon to find that many of the females have been 

 fertilized by more than a single male. 



BIBLIOGRAPHY. 

 Fasten, N. 



'14 Fertilization in the Parasitic Copepod Lernaeopoda edwardsii Olsson. 



BIOL. BULL., Vol. 27, pp. 115-127. 

 Wilson, C. B. 



'08 North American Parasitic Copepods: A List of Those found upon the 

 Fishes of the Pacific Coast with Descriptions of New Genera and Species. 

 Proc. U. S. Nat. Mus., Vol. 35, pp. 431-481. 



'15 North American Parasitic Copepods belonging to the Lernaeopodidae, with 

 a Revision of the entire Family. Proc. U. S. Nat. Mus., Vol. 47, pp. 

 565-729. 



