Adenogaster Looss, 1901 (identification resource)
Adenogaster serialis Looss, 1901 (redescription)
Astrorchis Poche, 1926 accepted as Pyelosomum Looss, 1899 (identification resource)
Astrorchis renicapite (Leidy, 1856) Poche, 1926 accepted as Pyelosomum renicapite (Leidy, 1856) Ruiz, 1946 (redescription)
Astrorchis sphargis (MacCallum, 1921) accepted as Pyelosomum renicapite (Leidy, 1856) Ruiz, 1946 (redescription)
Barisomum Linton, 1910 accepted as Pyelosomum Looss, 1899 (identification resource)
Barisomum erubescens Linton, 1910 accepted as Pyelosomum erubescens (Linton, 1910) (redescription)
Cetiosaccus Gilbert, 1938 (identification resource)
Cetiosaccus galapagensis Gilbert, 1938 (redescription)
Charaxicephalus Looss, 1901 (identification resource)
Charaxicephalus robustus Looss, 1901 (redescription)
Choanophorus Caballero, 1942 (identification resource)
Cricocephalus Looss, 1899 (identification resource)
Cricocephalus albus (Kuhl & van Hasselt, 1822) Looss, 1899 (redescription)
Cricocephalus megastomus Looss, 1902 (redescription)
Cricocephalus resectus Looss, 1902 (redescription)
Cricocephalus ruber (Kuhl & van Hasselt, 1822) Looss, 1899 (redescription)
Desmogonius Stephens, 1911 (identification resource)
Desmogonius desmogonius Stephens, 1911 (redescription)
Diaschistorchis Johnston, 1913 (identification resource)
Diaschistorchis gastricus Mehra, 1932 (redescription)
Diaschistorchis lateralis Oguro, 1936 (redescription)
Diaschistorchis pandus (Braun, 1901) Johnstone, 1913 (redescription)
Diaschistorchis takahashii Fukui & Ogata, 1936 (redescription)
Epibathra Looss, 1902 accepted as Pyelosomum Looss, 1899 (identification resource)
Epibathra crassus (Looss, 1901) Looss, 1902 accepted as Pyelosomum crassum (Looss, 1901) Ruiz, 1946 (redescription)
Glyphicephalus Looss, 1901 accepted as Pleurogonius Looss, 1901 (identification resource)
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)
Iguanacola Gilbert, 1938 (identification resource)
Iguanacola navicularis Gilbert, 1938 (redescription)
Macravestibulum Mackin, 1930 (identification resource)
Macravestibulum eversum Hsu, 1937 (redescription)
Macravestibulum kepneri Jones, Mounts & Wollcott, 1945 (redescription)
Macravestibulum obtusicaudum Mackin, 1930 (redescription)
Medioporus Oguro, 1936 accepted as Pleurogonius Looss, 1901 (identification resource)
Medioporus cheloniae Oguro, 1936 accepted as Pleurogonius cheloniae (Oguro, 1936) Ruiz, 1946 (redescription)
Medioporus macrophallus Oguro, 1936 accepted as Pleurogonius macrophallus (Oguro, 1936) Ruiz, 1946 (redescription)
Myosaccus Gilbert, 1938 accepted as Pyelosomum Looss, 1899 (identification resource)
Myosaccus amblyrhynchi Gilbert, 1938 accepted as Pyelosomum amblyrhynchi (Gilbert, 1938) Ruiz, 1946 (redescription)
Neopronocephalus Mehra, 1932 (identification resource)
Neopronocephalus gangeticus Mehra, 1932 accepted as Neopronocephalus triangularis Mehra, 1932 (redescription)
Neopronocephalus mehri Chatterji, 1936 accepted as Neopronocephalus triangularis Mehra, 1932 (redescription)
Neopronocephalus triangularis Mehra, 1932 (redescription)
Parapronocephalum Belopolskaja, 1952 (identification resource)
Parapronocephalum symmetricum Belopolskaja, 1952 (redescription)
Pleurogonius Looss, 1901 (identification resource)
Pleurogonius bilobus Looss, 1901 (redescription)
Pleurogonius candidulus (Linton, 1910) Manter, 1947 (redescription)
Pleurogonius linearis Looss, 1901 (redescription)
Pleurogonius longiusculus Looss, 1901 (redescription)
Pleurogonius minutissimus Looss, 1901 (redescription)
Pleurogonius ozakii Oguro, 1936 (redescription)
Pleurogonius trigonocephalus (Rudolphi, 1809) Looss, 1901 (redescription)
Pronocephalata (original description)
Pronocephalidae Looss, 1899 (identification resource)
Pronocephalus Looss, 1899 (identification resource)
Pronocephalus obliquus Looss, 1899 (redescription)
Pyelosomum Looss, 1899 (identification resource)
Pyelosomum cochlear Looss, 1899 (redescription)
Pyelosomum longicaecum Luhman, 1935 accepted as Pyelosomum renicapite (Leidy, 1856) Ruiz, 1946 (redescription)
Pyelosomum posterorchis Oguro, 1936 (redescription)
Renigonius Mehra, 1939 (identification resource)
Ruicephalus Skrjabin, 1955 (original description)
Ruicephalus minutus (Ruiz, 1946) Skrjabin, 1955 (new combination reference)
Ruicephalus minutus (Ruiz, 1946) Skrjabin, 1955 (redescription)
Teloporia Fukui, 1933 (identification resource)
Teloporia aspidonectes (MacCallum, 1917) Fukui, 1933 (redescription)