ORDER PLECTIDA Gadea, 1973

Family Aegialoalaimidae Lorenzen, 1981 Aegialoalaimus sp.

Family Aphanolaimidae Chitwood, 1936

Anonchus millelacunatus (Andrássy, 1973) Holovachov, Zullini, Loof & Bongers, 2002

Aphanolaimus sp.

Family Camacolaimidae De Coninck & Schuurmans Stekhoven, 1933

Dagda bipapillata Southern, 1914

Deontolaimus longicauda (de Man, 1922) Holovachov & Boström, 2015

Deontolaimus sp.

Onchium sp.

Family Ceramonematidae Cobb, 1933

Ceramonema attenuatum Cobb, 1920

Ceramonema carinatum Wieser, 1959

Ceramonema filipjevi De Coninck, 1942

Ceramonema racovitzai Andrássy, 1973

Ceramonema reticulatum Chitwood, 1936

Ceramonema rhombus Andrássy, 1973

Ceramonema sp.

Ceramonema yunfengi Platt & Zhang, 1982

Dasynemoides sp.

Metadasynemella cassidiniensis Vitiello & Haspeslagh, 1972

Metadasynemella falciphalla Vitiello & Haspeslagh, 1972

Metadasynemella sp.

Pselionema annulatum (Filipjev, 1922) Schuurmans Stekhoven, 1942

Pselionema beauforti Chitwood, 1936

Pselionema simile De Coninck, 1942

Pselionema sp.

Family Chronogasteridae Gagarin, 1975

Caribplectus magdalenae (Riemann, 1970) Andrássy, 1973

Cynura cerambus Andrássy, 1973

Family Diplopeltoididae Tchesunov, 1990 Diplopeltoides sp.

Family Haliplectidae Chitwood, 1951

Haliplectus bickneri Chitwood, 1956

Haliplectus brevispiculatus Andrássy, 1973

Haliplectus sp.

Setoplectus procerovisceralis Andrássy, 1973

Setoplectus sp.

Family Leptolaimidae Oerley, 1880

Leptolaimus acicula Lorenzen, 1966

Leptolaimus danicus Jensen, 1978

Leptolaimus papilliger de Man, 1876

Family Paramicrolaimidae Lorenzen, 1981

Microlaimus lunatus (Wieser & Hopper, 1967) Jensen, 1978

Paramicrolaimus sp.

Family Rhadinematidae Lorenzen, 1981 Cricolaimus elongatus Southern, 1914

Family Tarvaiidae Lorenzen, 1981 Tarvaia sp.