Although 'Pseudomecynostomum' (with 'o' in 'Pseudo-') is the etymologically correct form of this name, and although Dörjes (1968) originally used this spelling in his first listing of genera in the family Mecynostomidae (p. 115, 116), he has the the spelling as 'Pseudmecynostomum' elsewhere in this publication (pp. 63-64, 117, and 409 ff), apparently by typographical error. Because the first appearance of the genus name on p. 63 (in a table listing species covered by his study) is 'Pseudmecynostomum', this spelling is the one that is official according to rules of nomenclature. All species Dörjes (1968) described in this genus are named with 'Pseudmecynostomum' as the generic name.
Notes for the valid (accepted) taxonomic name
Notes for Mecynostomidae Pseudmecynostomum
Dorjes J 1968 (citation)- p 118-119 definition and list of species: Pseudmecynostomum pallidum (Beklemischev 1915) Pseudmecynostomum sanguineum (Beklemischev 1915) Pseudmecynostomum macrobursalium (Westblad 1946) Pseudmecynostomum bathycolum (Westblad 1948) Pseudmecynostomum evelinae (Marcus 1948) Pseudmecynostomum pelophilum (Dorjes 1968), type Pseudmecynostomum bruneum (Dorjes 1968) Pseudmecynostomum flavescens (Dorjes 1968) Pseudmecynostomum fragilis (Dorjes 1968) Pseudmecynostomum glandulosum (Dorjes 1968) Pseudmecynostomum granulum (Dorjes 1968) Pseudmecynostomum juistensis (Dorjes 1968) Pseudmecynostomum westbladi (Dorjes 1968) p 430 includes this additional species: Pseudmecynostomum maritimum (Dorjes 1968) Dorjes J 1972 (citation)- p 188 says both free living and parasitic species in this genus. Faubel A 1974 (citation)- description. Kolasa J, Faubel A 1974 (citation)- mention Kolasa thinks new species Oligochoerus polonicus close to this. Crezee M 1976 (citation)- p 116 lists in sulfide system p 115-117, several species. Ehlers U, Doerjes J 1979 (citation)- list p 60, in discussion p 65-68, 69, 70. Faubel A, Regier S 1983 (citation)- notes revision is needed with setting up new genera Eumecynostomum and Neomecynostomum. Leaves only 4 species here: Pseudmecynostomum bruneum Pseudmecynostomum bruneophilum Pseudmecynostomum pallidum Pseudmecynostomum pelophilum type new diagnosis p 15, discussion p 14-15.
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