Ref ID : 4868
Genoveva Esteban, Tom Fenchel, and Bland J. Finlay; Diversity of Free-Living Morphospecies in the Ciliate Genus Metopus. Arch.Protistenk 146:137-164, 1995
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This is a taxonomic revision of anaerobic free-living ciliates in the genus Metopus. It includes a rationalization of all nominal species described in the literature, and the allocation of the survivors to "morphospecies". The revision is based on examination of cultured species together with an exhaustive comparison of the published descriptions of nominal species. All free-living Metopus can be allocated to one of five general morphological types. Each type contains several morphospecies (and their synonym), each with conservative features. The seventy-six nominal species of Metopus are reduced to 22 morphospecies, and M. nivaaensis n. sp. is described.