Adenogaster serialis Looss, 1901 (redescription)
Allocreadiidae Looss, 1902 (original description)
Allocreadium isoporum (Looss, 1894) Looss, 1902 (new combination reference)
Amphistomum spinulosum Looss, 1901 accepted as Schizamphistomoides spinulosus (Looss, 1901) Stunkard, 1925 (redescription)
Angiodictyum Looss, 1902 (original description)
Angiodictyum parallelum (Looss, 1901) Looss, 1902 (new combination reference)
Angiodictyum parallelum (Looss, 1901) Looss, 1902 (redescription)
Anisocladium fallax (Rudolphi, 1819) Looss, 1902 (new combination reference)
Brachycoelium hospitale (Stafford, 1900) Looss, 1902 (new combination reference)
Catoptroides Odhner in Looss, 1902 accepted as Phyllodistomum Braun, 1899 (original description)
Charaxicephalus Looss, 1901 (taxonomy source)
Charaxicephalus robustus Looss, 1901 (redescription)
Cricocephalus Looss, 1899 (redescription)
Cricocephalus albus (Kuhl & van Hasselt, 1822) Looss, 1899 (redescription)
Cricocephalus delitescens Looss, 1899 accepted as Cricocephalus albus (Kuhl & van Hasselt, 1822) Looss, 1899 (source of synonymy)
Cricocephalus megastomus Looss, 1902 (original description)
Cricocephalus resectus Looss, 1902 (original description)
Deuterobaris proteus (Brandes, 1891) Looss, 1902 (redescription)
Deuterobaris proteus (Brandes, 1891) Looss, 1902 (new combination reference)
Distomum petalosum Lander in Looss, 1902 accepted as Crepidostomum petalosum (Lander in Looss, 1902) Yamaguti, 1958 (original description)
Enodiotrema acariaeum Looss, 1901 (original description)
Enodiotrema instar Looss, 1901 (redescription)
Enodiotrema megachondrus (Looss, 1899) Looss, 1901 (redescription)
Enodiotrema reductum Looss, 1901 (redescription)
Epibathra Looss, 1902 accepted as Pyelosomum Looss, 1899 (original description)
Epibathra crassus (Looss, 1901) Looss, 1902 accepted as Pyelosomum crassum (Looss, 1901) Ruiz, 1946 (new combination reference)
Genarches Looss, 1902 accepted as Progonus Looss, 1899 (original description)
Glyphicephalus Looss, 1901 accepted as Pleurogonius Looss, 1901 (taxonomy source)
Glyphicephalus lobatus Looss, 1901 accepted as Pleurogonius lobatus (Looss, 1901) Ruiz, 1946 (redescription)
Glyphicephalus solidus Looss, 1901 accepted as Pleurogonius solidus (Looss, 1901) Ruiz, 1946 (redescription)
Gorgoderina Looss, 1902 (original description)
Heterophyes fraterna (Looss, 1894) Looss, 1902 (new combination reference)
Heterophyes persicus (Braun, 1901) Looss, 1902 (new combination reference)
Liocerca Looss, 1902 accepted as Derogenes Lühe, 1900 (original description)
Lophotaspis adhaerens Looss, 1901 accepted as Lophotaspis vallei (Stossich, 1899) Looss, 1902 (source of synonymy)
Lophotaspis vallei (Stossich, 1899) Looss, 1902 (redescription)
Lophotaspis vallei (Stossich, 1899) Looss, 1902 (new combination reference)
Microscaphidium aberrans Looss, 1902 (original description)
Octangium Looss, 1902 (original description)
Octangium hasta Looss, 1902 accepted as Octangium sagitta (Looss, 1899) Looss, 1902 (original description)
Octangium sagitta (Looss, 1899) Looss, 1902 (new combination reference)
Octangium sagitta (Looss, 1899) Looss, 1902 (redescription)
Pachypsolus irroratus (Rudolphi, 1819) Looss, 1902 (new combination reference)
Pachypsolus lunatus Looss, 1901 accepted as Pachypsolus irroratus (Rudolphi, 1819) Looss, 1902 (source of synonymy)
Phyllodistomum conostomum (Olsson, 1876) Looss, 1902 accepted as Phyllodistomum umblae (Fabricius, 1780) Bakke, 1982 (new combination reference)
Pleurogonius Looss, 1901 (taxonomy source)
Pleurogonius bilobus Looss, 1901 (redescription)
Pleurogonius linearis Looss, 1901 (redescription)
Pleurogonius longiusculus Looss, 1901 (redescription)
Pleurogonius minutissimus Looss, 1901 (redescription)
Pleurogonius trigonocephalus (Rudolphi, 1809) Looss, 1901 (redescription)
Pneumonoeces Looss, 1902 accepted as Haematoloechus Looss, 1899 (original description)
Polyangium Looss, 1902 (original description)
Polyangium linguatula (Looss, 1899) Looss, 1902 (new combination reference)
Polyangium linguatula (Looss, 1899) Looss, 1902 (redescription)
Probolitrema Looss, 1902 (original description)
Probolitrema capense Looss, 1902 accepted as Probolitrema richiardii (López, 1888) Looss, 1902 (original description)
Probolitrema richiardii (López, 1888) Looss, 1902 (new combination reference)
Pronocephalus obliquus Looss, 1899 (redescription)