FAMILY Cyartonematidae Tchesunov, 1989 [Tchesunov 1994 p.377] GENUS Cyartonema Cobb, 1920 SPECIES Cyartonema doris Tchesunov, 1989:11 SPECIES Cyartonema flexile Cobb, 1920 [Gerlach & Riemann 1973] SPECIES Cyartonema parvulum Tchesunov, 1989:8 SPECIES Cyartonema zosterae Allgén, 1929 [Redescription; Tchesunov 1989 p.5]