Classification of the genus Trochonema

G. †Trochonema Salter 1859
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†Trochonema altum Ulrich and Scofield 1897
†Trochonema attavum Perner 1903
†Trochonema beachi Whitfield 1878
†Trochonema bellulum Ulrich and Scofield 1897
†Trochonema beloitense Whitfield 1878
†Trochonema biangulata Hall 1847
†Trochonema cambodgensis Delpey 1941
†Trochonema canadensis Ulrich and Scofield 1897
†Trochonema coxi Wilson 1938
†Trochonema dispar Raymond 1905
†Trochonema eccentricum Ulrich and Scofield 1897
†Trochonema exile Whitfield 1889
†Trochonema fragile Ulrich and Scofield 1897
†Trochonema galtensis Whiteaves 1884
†Trochonema liljevalli Rohr 1980
†Trochonema madisonense Ulrich and Scofield 1897
†Trochonema minus Koken 1897
†Trochonema panderi Koken 1896
†Trochonema peraltum Koken 1897
†Trochonema retrorsum Ulrich and Scofield 1897
†Trochonema rugosa Ulrich and Scofield 1897
†Trochonema schmidti Koken 1897
†Trochonema shallochense Lamont 1946
†Trochonema subcrassum Ulrich and Scofield 1897
†Trochonema tricinctum Perner 1903
†Trochonema trochonemoides Ulrich and Scofield 1897
†Trochonema umbilicata Hall 1847
†Trochonema vagrans Ulrich and Scofield 1897
†Trochonema valenticum Pitcher 1939
†Trochonema vittatum Koken and Perner 1925
†Trochonema wartheni Hussey 1926
†Trochonema wilsonae Steele and Sinclair 1971