TABLE 5 



Infection by monogenetic trematodes of hybrid individuals 

 of carp fishes (according to Nybelin, 1936) 



No. II. II. 



Host 



Parasite 



Number of 



parasitic 



individuals 



Rutilus rutilus x Abramis 



brama 



Dactylogyrus crucifer 

 Wagener 



11 



Same 



D. auriculatus (Nordmann) 1 



3 

 1 



D. falcatus (Wedl. ) 



D. sphyrna Linstow 



265 



