Acanthonchus Cobb, 1920 (original description)
Acanthonchus viviparus Cobb, 1920 accepted as Acanthonchus (Acanthonchus) viviparus Cobb, 1920 (original description)
Actinonema Cobb, 1920 (original description)
Actinonema pachydermatum Cobb, 1920 (original description)
Alaimella Cobb, 1920 (original description)
Alaimella cincta Cobb, 1920 (original description)
Anticyathus Cobb, 1920 (original description)
Anticyclus Cobb, 1920 (original description)
Anticyclus exilis Cobb, 1920 (original description)
Antomicron Cobb, 1920 (original description)
Antomicron pellucidum Cobb, 1920 (original description)
Apodontium Cobb, 1920 (original description)
Aponchium Cobb, 1920 (original description)
Aponchium cylindricolle Cobb, 1920 (original description)
Belbolla Andrássy, 1973 (original description)
Bolbolaimus Cobb, 1920 (original description)
Bolbonema Cobb, 1920 (original description)
Campylaimus Cobb, 1920 (original description)
Campylaimus inaequalis Cobb, 1920 (original description)
Ceramonema Cobb, 1920 (original description)
Chromaspirina punctata (Cobb, 1920) accepted as Pomponema punctata (Cobb, 1920) Luc & Deconinck, 1959 (original description)
Cyartonema Cobb, 1920 (original description)
Cynura Cobb, 1920 (original description)
Cynura uniformis Cobb, 1920 (original description)
Cytolaimium Cobb, 1920 (original description)
Daptonema Cobb, 1920 (original description)
Desmodora (Croconema) Cobb, 1920 accepted as Croconema Cobb, 1920 (original description)
Didelta Cobb, 1920 (original description)
Gammanema Cobb, 1920 (original description)
Gonionchus Cobb, 1920 (original description)
Gonionchus villosus Cobb, 1920 (original description)
Halanonchus Cobb, 1920 (original description)
Halinema Cobb, 1920 (original description)
Ionema Cobb, 1920 (original description)
Laimella Cobb, 1920 (original description)
Laimella longicauda Cobb, 1920 (original description)
Laimella longicaudata accepted as Laimella longicauda Cobb, 1920 (original description)
Leptonemella Cobb, 1920 (original description)
Leptonemella cincta Cobb, 1920 (original description)
Litinium Cobb, 1920 (original description)
Litinium aequale Cobb, 1920 (original description)
Margonema Cobb, 1920 (original description)
Nannolaimus Cobb, 1920 (original description)
Nemanema Cobb, 1920 (original description)
Nemella Cobb, 1920 accepted as Ionema Cobb, 1920 (original description)
Nemella ocellata Cobb, 1920 (original description)
Nudora Cobb, 1920 (original description)
Omicronema Cobb, 1920 (original description)
Onchium Cobb, 1920 (original description)
Onchium ocellatum Cobb, 1920 (original description)
Paramonohystera pellucida (Cobb, 1920) (original description)
Polysigma Cobb, 1920 (original description)
Pomponema punctata (Cobb, 1920) Luc & Deconinck, 1959 (original description)
Porocoma Cobb, 1920 (original description)
Pseudolella Cobb, 1920 (original description)
Pseudolella granulifera Cobb, 1920 (original description)
Pseudonchus Cobb, 1920 (original description)
Ptycholaimellus Cobb, 1920 (original description)
Rhabdocoma Cobb, 1920 (original description)
Rhabdocoma americana Cobb, 1920 (original description)
Rhabdocoma macrura Cobb, 1920 (original description)
Rhadinema Cobb, 1920 (original description)
Rhadinema flexile Cobb, 1920 (original description)
Rhinema Cobb, 1920 (original description)
Rhips Cobb, 1920 (original description)
Rhips ornata Cobb, 1920 (original description)
Rhynchonema Cobb, 1920 (original description)
Rhynchonema cinctum Cobb, 1920 (original description)
Stilbonema Cobb, 1920 (original description)
Synodontium Cobb, 1920 (original description)
Synonchium Cobb, 1920 (original description)
Synonchium obtusum Cobb, 1920 (original description)
Synonema Cobb, 1920 (original description)
Theristus proprius Lorenzen, 1972 accepted as Daptonema proprium (Lorenzen, 1972) Lorenzen, 1977 (basis of record)
Thoonchus Cobb, 1920 (original description)
Trissonchulus Cobb, 1920 (original description)
Trissonchulus oceanus Cobb, 1920 (original description)
Xenella Cobb, 1920 accepted as Xennella Cobb, 1920 (original description)
Xennella Cobb, 1920 (original description)
Xenolaimus Cobb, 1920 (original description)
Xenonema Cobb, 1920 (original description)
Xyala Cobb, 1920 (original description)
Xyala striata Cobb, 1920 (original description)
Zalonema Cobb, 1920 (original description)