Aegialoalaimus amphibulbosus Gerlach, 1955 accepted as Setoplectus amphibulbosus (Gerlach, 1955) Vitiello, 1971 (original description)
Comesoma heterosetosum Gerlach, 1955 (original description)
Diodontolaimus tenuispiculum Gerlach, 1955 accepted as Procamacolaimus tenuispiculum (Gerlach, 1955) (original description)
Gammanema cancellatum Gerlach, 1955 (original description)
Halalaimus supercirrhatus Gerlach, 1955 (original description)
Halichoanolaimus chordiurus Gerlach, 1955 (original description)
Longicyatholaimus trichocauda Gerlach, 1955 (original description)
Metachromadora spiralis Gerlach, 1955 (original description)
Microlaimus oblongilaimus Gerlach, 1955 (original description)
Oncholaimus longispiculosus Gerlach, 1955 (original description)
Parodontophora polita (Gerlach, 1955) Timm, 1963 (original description)
Platycomopsis curiosa Gerlach, 1955 accepted as Platycoma curiosa (Gerlach, 1955) Gerlach, 1962 accepted as Proplatycoma curiosa (Gerlach, 1955), Platonova, 1976 (original description)
Prooncholaimus armiger Gerlach, 1955 (original description)
Ptycholaimellus ponticus (Filipjev, 1922) Gerlach, 1955 (new combination reference)
Rhabdocoma articulata Gerlach, 1955 (original description)
Spilophorella meyerabichi Gerlach, 1955 (original description)
Steineria paramirabilis Gerlach, 1955 accepted as Trichotheristus paramirabilis (Gerlach, 1955) accepted as Pseudosteineria paramirabilis (Gerlach, 1955) Tchesunov, 1990 (original description)
Steineria punctata Gerlach, 1955 (original description)
Terschellingia papillata Gerlach, 1955 (original description)
Theristus coronatus Gerlach, 1955 accepted as Pseudosteineria coronata (Gerlach, 1955) Wieser, 1959 (original description)
Theristus metaflevensis Gerlach, 1955 (original description)
Trefusia varians Gerlach, 1955 (original description)
Tricoma uncinata Gerlach, 1955 (original description)
Trileptium salvadoriense Gerlach, 1955 (original description)

East Pacific for Halichoanolaimus chordiurus Gerlach, 1955 
El Salvador Exclusive Economic Zone for Paracyatholaimus paucipapillatus Gerlach, 1955 
Mediterranean Sea Area for Halalaimus supercirrhatus Gerlach, 1955 
San Salvador for Microlaimus oblongilaimus Gerlach, 1955