11. Family Platycotylidae Monticelli 



12. Family Grubeidae nom. nov. (Pleurocotylidae Monticelli) 



13. Family Protomicrocotylidae f. nov. 



What is new in comparison with the preceding system is only 

 the abolition of the family Microcotylidae which was united with 

 Octocotylidae (it was fornaally proposed by Odhner in 1912) and the 

 introduction of a number of new names instead of the ones proposed by 

 Monticelli on the basis of a number of partially valid considerations. 

 Two genera from the group of Monopisthocotylinea and one genus from 

 Polypisthocotylea remain outside of this system. 



Further, a large regroupnnent was conducted in 1932 by 

 Fuhrmann who divided Monogenoidea into three suborders. His system 

 has the following form: 



Order MONOGENA Beneden 

 1. Suborder Monopisthodiscinea Fvihrmann 



1. Family Protogyrodactylidae Johnston and Tiegs ( Protogyrodactylus 



and Trivitellina ). 



2. Family Gyrodactylidae Beneden and Hesse 



Subfamily Gyrodactylinae ( Gyrodactylus , Dactylogyrus ). 

 Subfamily Isancistrinae ( Isancistrum) 

 Subfamily Tetraonchinae ( Tetraonchus and sp. ) 

 Subfamily Lepidotreminae ( Lepidotrema and sp. ) 



3. Family Calceostomidae (Parona and Perugia) ( Calceostoma , 



Fridericianella and Cathariotrema ) 



2. Suborder Monopisthocotylinea Odhner 



1. Family Monocotylidae Taschenberg 



Suborder Pseudocotylinae (Pseudocotyle and sp. ) 

 Suborder Pseudocotylinae ( Monocotyle and sp. ) 



2. Family Tristomidae Taschenberg 



Subfamily Ancyrocotylinae (Ancyrocotyle and sp. ) 

 Subfamily Tristominae (Tristomum and sp. ) 



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