Ref ID : 2861
Vladimir Sladecek; Indicator value of the genus Opercularia (Ciliata). Hydrobiologia 79:229-232, 1981
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From the rich genus of Ciliata Peritrichida, comprising about 100 species, 8 taxa were selected, described, figured and classified saprobiologically: Opercularia coarctata, O. confusa, O. minima, O. microdiscum, O. nutans, O. allensii, O. curvicaula and O. phryganeae. These species are considered as common and serving as best indicators of the saprobic conditions of their environment.