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Nomenclature; taxonomy; genus-group; family-group; Urceolaria; Trichodina mitra; Urceolariidae; homonymy; reversal of precedence; mobiline peritrichs

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Case 3882: Urceolaria Stein, 1867 and URCEOLARIIDAE Stein, 1867 (Ciliophora, Peritrichia): proposed conservation of usage by giving them precedence over the names Urceolaria Lamarck, 1816 nec Lamarck, 1801 and URCEOLARIIDAE Dujardin, 1841 and by ruling that the names Urceolariella Corliss, 1977 and URCEOLARIELLIDAE Corliss, 1977 are unavailable

Erna Aescht, “Case 3882: Urceolaria Stein, 1867 and URCEOLARIIDAE Stein, 1867 (Ciliophora, Peritrichia): proposed conservation of usage by giving them precedence over the names Urceolaria Lamarck, 1816 nec Lamarck, 1801 and URCEOLARIIDAE Dujardin, 1841 and by ruling that the names Urceolariella Corliss, 1977 and URCEOLARIELLIDAE Corliss, 1977 are unavailable”, Bulletin of Zoological Nomenclature, vol. 82, 2025.

The purpose of this application, under Articles 23.9.3, 61.1 and 81.1 of the International Code of Zoological Nomenclature, is to conserve the current usage of the name URCEOLARIIDAE Stein, 1867 (incorrect original spelling Urceolarina) for a family of broadly-studied mobiline peritrichs (Ciliophora)—ectosymbionts of freshwater Turbellaria, marine polychaetes and molluscs—by reversing its precedence with....

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