Fig. 265. Diagram of occurrence of monogenetic trematodes on the orders 



of body fishes. The designations are the same as in Diagram 264. In 



addition to that the dark triangles signify that in the given group of hosts 



occur parasitic wornns which are separated at least to a degree of independent , 



genera, whereas the white triangles --that in the given case takes place the I 



occurrence of species pertaining to the genera characteristic for another 



order of fishes. la--Dactylogyrinae, lb--Ancyrocephalinae, lc--L.inguadactylina< 



23a--Discocotylinae, 23b--Diplozooninae (basically and partially Discocotylinae); 



M. --Macruriformes; P. --Polynemiformes. I 



374 



