Amphimonhystera paranechma Allgén, 1935 (original description)
Araeolaimus tenuicaudatus Allgén, 1959 accepted as Araeolaimus tenuicauda Gerlach & Riemann, 1973 (ecology source)
Axonolaimus schuurmansstekhoveni Allgén, 1935 (original description)
Bathylaimus parafilicaudatus Allgén, 1935 accepted as Bathylaimus chesapeakensis Timm, 1952 (original description)
Desmolaimus mirabilis Allgén, 1935 (original description)
Desmolaimus tristis Allgén, 1935 (original description)
Disconema suecicum Allgén, 1935 (original description)
Draconema cephalatum (Cobb, 1913) Steiner, 1921 (additional source)
Eleutherolaimus parasabulicolus (Allgén, 1935) (ecology source)
Enoplolaimus filiformis (Allgén, 1935) Wieser, 1953 (ecology source)
Filipjeviella (Allgén, 1935) Jensen, 1976 accepted as Pandolaimus Allgén, 1929 (original description)
Filipjeviella viscosa Allgén, 1935 accepted as Pandolaimus latilaimus (Allgén, 1929) Schuurmans Stekhoven, 1935 (original description)
Heterocyatholaimus Allgén, 1935 (original description)
Heterocyatholaimus macrolaimus Allgén, 1935 (original description)
Litinium simplex (Allgen, 1935) Lorenzen, 1981 (original description)
Margonema longisetosum Allgén, 1935 (original description)
Metalinhomoeus tenuicaudatus Allgén, 1935 (original description)
Monhystera macquariensis Allgén, 1929 accepted as Paralinhomoeus macquariensis (Allgén, 1929) (redescription)
Nijhoffia Allgén, 1935 (original description)
Nijhoffia longicaudata Allgén, 1935 (original description)
Odontophora tenuicaudata Allgén, 1935 (original description)
Onchium conicaudatum (Allgén, 1935) Wieser, 1956 accepted as Onchium metocellatum (Wieser, 1956) Gerlach & Riemann, 1973 (ecology source)
Oncholaimus serratus Allgén, 1935 (original description)
Oncholaimus spissus Allgén, 1935 (original description)
Paracyatholaimus oistospiculoides (Allgén, 1935) Wieser, 1954 (original description)
Paracyatholaimus parasaveljevi Allgén, 1935 (original description)
Quadricoma scanica (Allgén, 1935) accepted as Tricoma (Quadricoma) scanica (Allgén, 1935) (ecology source)
Sphaerolaimus striatus Allgén, 1935 accepted as Parasphaerolaimus striatus (Allgén, 1935) Cavalcanti & Venekey, 2017 (original description)
Thalassoalaimus tenuis Allgén, 1935 (original description)
Theristus longissimecaudatus Kreis, 1935 accepted as Daptonema longissimecaudatum (Kreis, 1935) Lorenzen, 1977 (original description)
Tricoma pellucida Allgén, 1935 (original description)
Xennella suecica Allgén, 1935 (original description)