" Cyclocotyla " bell ones was described from the skin of Belone 

 belone (Brun) (the Hornhecht, according to Otto 1823), Price (Price, 1943a) 

 took this species for the type of the genus and included it in the nnajority of 

 species placed by Sproston (Sproston, 1946) in the genus Choricotyle. Along 

 with this, Palombi (Palombi, 1943b, 1949) placed C. bellones in the genus 

 Diclidophora, \vhich is understood very broadly by him, and entered Choricotyle 

 smaris Ijima,in Goto 1894, Ch. squillarum (Parona and Perugia) and Ch. 

 charicoti DoUfus into the synonymy of the given species. One can hardly 

 agree with the opinions of Price and Palombi and it is more correct to 

 consider this genus and species as genus et species inquirendum as is done 

 by Sproston, in our opinion, quite correctly so. Actually, C. bellones was 

 found only once and thus even though Palombi indicates a number of perci- 

 formids besides Belone as hosts of this species, these data cannot now be 

 accepted. Hence, C. belones must be excluded from the corresponding 

 group in Table 4 and transferred into the group discovered only on one 

 species. 



Five species of monogenetic trematodes --Tristoma integrum 

 Diesing, Tr. papillosum Diesing, Diplectanotrema balistes (MacCallum), 

 Diclidophora palmata (Leuckart) and D. merlangi (Kuhn)--are indicated 

 on three species of fishes related to three various genera of different 

 families and orders. 



Tristoma integrum was described from Xiphias gladius L. 

 (Xiphiidae, Perciformes) on which it has been also often found subse- 

 quently. In addition to that Palombi (Palombi, 1949) indicates as hosts of 

 this species (on the basis of the data of Italian researchers and his own p^ 226 



opinion that Tr. coccineum of a number of authors and Tr. rotiondum are 

 synonyms of the species under consideration) also Tetrapterus belone Raf. 

 (Histiophoridae, Perciformes) and Mola mola L. (Molidae, Tetrodontl- 

 formes). The opinion of Palombi is clearly insufficiently supported, in 

 connection with which it is more correct to consider that at the present 

 time Tr. integrum is known only from one species of hosts and consequently 

 does not belong in the group considered in Table 4. 



Tr. papillosum is indicated also on the same three species of 

 hosts as the preceding species. It is not considered possible to establish 

 the correctness of these data. We shall note, however, that Diesing 

 (Diesing, 1836) indicated Mola mola as the first host of this species. 

 Generally one must say that the synonymy of the genus Tristoma and the 

 independence of its separate species demands special research. Thus, 

 Tr. papillosum must be (for the present, nobis ) considered as occurring on 

 the hosts indicated, of which two - Xiphias and Tetrapterus , belong to 

 families closely related to each other, whereas the third is considerably 

 removed from the first. 



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