Ancyrocephalus chiapanensis Mendoza-Franco, Caspeta-Mandujano & Ramírez-Martínez, 2018 (taxonomy source)
Ancyrocephalus cornutus Williams & Rogers, 1972 accepted as Hemirhamphiculus cornutus (Williams & Rogers, 1972) Kritsky & Bakenhaster, 2024 (new combination reference)
Ancyrocephalus parvus Linton, 1940 accepted as Hemirhamphiculus parvus (Linton, 1940) Kritsky & Bakenhaster, 2024 (new combination reference)
Ancyrocephalus trullae Williams, 1980 accepted as Hemirhamphiculus trullae (Williams, 1980) Kritsky & Bakenhaster, 2024 (new combination reference)
Bychowskymonogenea Caballero & Bravo-Hollis, 1969 accepted as Hemirhamphiculus Bychowsky & Nagibina, 1969 (source of synonymy)
Bychowskymonogenea sogandaresi Caballero & Bravo-Hollis, 1969 accepted as Hemirhamphiculus tylosuri (MacCallum, 1917) Kritsky & Bakenhaster, 2024 (source of synonymy)
Bychowskymonogeninae Caballero & Bravo-Hollis, 1969 accepted as Ancyrocephalidae Bychowsky, 1937 (taxonomy source)
Diplectanum tylosuri MacCallum, 1917 accepted as Hemirhamphiculus tylosuri (MacCallum, 1917) Kritsky & Bakenhaster, 2024 (new combination reference)
Hareocephalus Young, 1968 (taxonomy source)
Hemirhamphiculus Bychowsky & Nagibina, 1969 (taxonomy source)
Hemirhamphiculus acarips Kritsky & Bakenhaster, 2024 (original description)
Hemirhamphiculus bilobatus Kritsky & Bakenhaster, 2024 (original description)
Hemirhamphiculus brevilamellaltus (Zhang in Zhang, Yang & Liu, 2001) Kritsky, 2017 (additional source)
Hemirhamphiculus choanophallus Kritsky, 2017 (additional source)
Hemirhamphiculus cornutus (Williams & Rogers, 1972) Kritsky & Bakenhaster, 2024 (new combination reference)
Hemirhamphiculus cornutus (Williams & Rogers, 1972) Kritsky & Bakenhaster, 2024 (redescription)
Hemirhamphiculus exserocephalus Kritsky, 2017 (additional source)
Hemirhamphiculus flagrum Kritsky, 2017 (additional source)
Hemirhamphiculus haikouensis (Zhang in Zhang, Yang & Liu, 2001) Kritsky & Bakenhaster, 2024 (new combination reference)
Hemirhamphiculus incomptus Kritsky, 2017 (additional source)
Hemirhamphiculus krabsi Kritsky, 2017 (additional source)
Hemirhamphiculus litus Kritsky & Bakenhaster, 2024 (original description)
Hemirhamphiculus longiclathra Kritsky & Bakenhaster, 2024 (original description)
Hemirhamphiculus longilamellatus (An & Zhang, 1988) Kritsky, 2017 (additional source)
Hemirhamphiculus lucernula Kritsky & Bakenhaster, 2024 (original description)
Hemirhamphiculus parvus (Linton, 1940) Kritsky & Bakenhaster, 2024 (redescription)
Hemirhamphiculus parvus (Linton, 1940) Kritsky & Bakenhaster, 2024 (new combination reference)
Hemirhamphiculus perexiguus Kritsky, 2017 (additional source)
Hemirhamphiculus pinguis (Bychowsky & Nagibina, 1969) Kritsky, 2017 (additional source)
Hemirhamphiculus recurvatus (Yamaguti, 1968) Kritsky & Bakenhaster, 2024 (new combination reference)
Hemirhamphiculus similis Bychowsky & Nagibina, 1969 (additional source)
Hemirhamphiculus trullae (Williams, 1980) Kritsky & Bakenhaster, 2024 (new combination reference)
Hemirhamphiculus tylosuri (MacCallum, 1917) Kritsky & Bakenhaster, 2024 (new combination reference)
Hemirhamphiculus tylosuri (MacCallum, 1917) Kritsky & Bakenhaster, 2024 (redescription)
Hemirhamphiculus xenentodoni (Jain, 1959) Kritsky & Bakenhaster, 2024 (new combination reference)
Pseudohaliotrematoides recurvatus Yamaguti, 1968 accepted as Hemirhamphiculus recurvatus (Yamaguti, 1968) Kritsky & Bakenhaster, 2024 (new combination reference)
Tribaculocauda Tripathi, 1959 (taxonomy source)
Tribaculocauda discoidea Tripathi, 1959 (additional source)
Tylosuricola Unnithan, 1964 (taxonomy source)
Tylosuricola amatoi Iannacone & Luque, 1991 (additional source)
Tylosuricola haikouensis Zhang in Zhang, Yang & Liu, 2001 accepted as Hemirhamphiculus haikouensis (Zhang in Zhang, Yang & Liu, 2001) Kritsky & Bakenhaster, 2024 (new combination reference)
Tylosuricola pannikari Unnithan, 1964 (toxicology source)
Urocleidus xenendodoni Jain, 1961 accepted as Hemirhamphiculus xenentodoni (Jain, 1959) Kritsky & Bakenhaster, 2024 (source of synonymy)
Urocleidus xenentodoni Jain, 1959 accepted as Hemirhamphiculus xenentodoni (Jain, 1959) Kritsky & Bakenhaster, 2024 (new combination reference)
Xenentocleidus Tripathi, Agrawal & Pandey, 2007 accepted as Hemirhamphiculus Bychowsky & Nagibina, 1969 (taxonomy source)
Xenentocleidus Tripathi, Agrawal & Pandey, 2007 accepted as Hemirhamphiculus Bychowsky & Nagibina, 1969 (source of synonymy)
Xenentocleidus xenentodoni (Jain, 1961) Tripathi, Agrawal & Pandey, 2007 accepted as Hemirhamphiculus xenentodoni (Jain, 1959) Kritsky & Bakenhaster, 2024 (new combination reference)

Biscayne Bay for Hemirhamphiculus parvus (Linton, 1940) Kritsky & Bakenhaster, 2024 
Chesapeake Bay for Hemirhamphiculus parvus (Linton, 1940) Kritsky & Bakenhaster, 2024 
Gulf of Maine/Bay of Fundy for Hemirhamphiculus parvus (Linton, 1940) Kritsky & Bakenhaster, 2024 
Gulf of Mannar for Tylosuricola pannikari Unnithan, 1964 
Mexican part of the Gulf of Mexico for Hemirhamphiculus tylosuri (MacCallum, 1917) Kritsky & Bakenhaster, 2024 
Northern Gulf of Mexico for Hemirhamphiculus bilobatus Kritsky & Bakenhaster, 2024 
Northern Gulf of Mexico for Hemirhamphiculus cornutus (Williams & Rogers, 1972) Kritsky & Bakenhaster, 2024 
South China Sea for Tribaculocauda guii Zhang in Zhang, Yang & Liu, 2001 
Tampa Bay for Hemirhamphiculus acarips Kritsky & Bakenhaster, 2024 
Tampa Bay for Hemirhamphiculus cornutus (Williams & Rogers, 1972) Kritsky & Bakenhaster, 2024 
Tampa Bay for Hemirhamphiculus litus Kritsky & Bakenhaster, 2024 
Tampa Bay for Hemirhamphiculus longiclathra Kritsky & Bakenhaster, 2024 
Tampa Bay for Hemirhamphiculus lucernula Kritsky & Bakenhaster, 2024 
Tampa Bay for Hemirhamphiculus parvus (Linton, 1940) Kritsky & Bakenhaster, 2024 
Tampa Bay for Hemirhamphiculus tylosuri (MacCallum, 1917) Kritsky & Bakenhaster, 2024 
United States part of the Gulf of Mexico for Hemirhamphiculus parvus (Linton, 1940) Kritsky & Bakenhaster, 2024 

 Taxonomic remark

 for Ancyrocephalus chiapanensis Mendoza-Franco, Caspeta-Mandujano & Ramírez-Martínez, 2018

Ancyrocephalus chiapanensis likely belongs to Hemirhamphiculus. [details]

 Taxonomic remark

 for Hareocephalus Young, 1968

Although objective analysis is lacking, Hareocephalus is accepted as a valid taxon that, based in part on the ... [details]

 Taxonomic remark

 for Hemirhamphiculus haikouensis (Zhang in Zhang, Yang & Liu, 2001) Kritsky & Bakenhaster, 2024

Although features of the MCO and haptoral sclerites closely resemble those of He. reticulatus, the proposal of ... [details]

 Taxonomic remark

 for Tribaculocauda Tripathi, 1959

Except for the presence of 2 unarticulated ventral haptoral bars, species of Tribaculocauda possess all other ... [details]