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The System of Higher Monogeneans in the Light of Recent Knowledge 1
Author(s) -
MAMAEV YURIY L.,
LEBEDEV BORIS I.
Publication year - 1979
Publication title -
zoologica scripta
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.204
H-Index - 64
eISSN - 1463-6409
pISSN - 0300-3256
DOI - 10.1111/j.1463-6409.1979.tb00615.x
Subject(s) - biology , phylogenetic tree , taxon , zoology , monogenea , ecology , fish <actinopterygii> , fishery , genetics , gene , gill
Since Bykhowsky's monograph in 1957, the number of genera of higher monogeneans (Oligonchoinea Bykhowsky, 1937) has increased from 60 to 220, and the number of families from 12 to 29. Consequently the system of higher monogeneans requires updating. The order Mazocraeidea Bykhowsky, 1957 should be divided into four suborders: Mazocraeinea, Discocotylinea, Gastrocotylinea and Microcotylinea. The position of the orders Diclibothridea and Chimaericolidea in Bykhowsky's scheme should be changed, because the chimaericolids appear more primitive in several characters than the diclibothriids; furthermore, the suborder Pterinotrematinea Bykhowsky et Nagibina, 1959 should be raised to the rank of order. The taxonomic position of Polystomatidae/Sphyranuridae cannot be settled unequivocally at present. According to peculiarities in their organization they connect the lower monogeneans with the higher ones, and might possibly have to be evaluated and regarded as a third separate group. Division of the higher monogeneans into orders as suggested by Bykhowsky is of general importance, because it reflects actually existing phylogenetic groups separated by considerable morphological differences. Uniting families into superfamilies or into suborders is of no importance. The authors' classification of higher monogeneans is given together with a list of genera and a scheme of the phylogenetic relations of their larger taxa.