Aequistoma Beaver, 1942 accepted as Mesorchis Dietz, 1909 (source of synonymy)
Beaverostomum Gupta, 1963 accepted as Mesorchis Dietz, 1909 (source of synonymy)
Echinochasmus macroovarium Chertkova & Kosupko, 1966 (status source)
Echinochasmus pitangi (Lutz, 1924) Beaver, 1936 (taxonomy source)
Echinoparyphium singularis (Lutz, 1924) Kohn & Fernandes, 1976 (taxonomy source)
Mesorchis Dietz, 1909 (taxonomy source)
Mesorchis acridotherei Wang, 1976 (taxonomy source)
Mesorchis amurensis (Tatonova, Izrailskaia & Besprozvannykh, 2020) Cajiao-Mora & Bullard in Cajiao-Mora, Dutton, Jacobs, Beytell, Netherlands, Du Preez & Bullard, 2025 (new combination reference)
Mesorchis aylacostoma (Ostrowski de Núñez & Quintana, 2008) Cajiao-Mora & Bullard in Cajiao-Mora, Dutton, Jacobs, Beytell, Netherlands, Du Preez & Bullard, 2025 (new combination reference)
Mesorchis camponica (Nasir & Diaz, 1971) accepted as Mesorchis jacaretinga (Teixeira de Freitas & Lent, 1938) Cajiao-Mora & Bullard in Cajiao-Mora, Dutton, Jacobs, Beytell, Netherlands, Du Preez & Bullard, 2025 (basis of record)
Mesorchis chasanensis (Besprozvannykh, Rozhkovan & Ermolenko, 2016) Cajiao-Mora & Bullard in Cajiao-Mora, Dutton, Jacobs, Beytell, Netherlands, Du Preez & Bullard, 2025 (new combination reference)
Mesorchis conciliatus Dietz, 1909 (taxonomy source)
Mesorchis denticulatus (Rudolphi, 1802) Dietz, 1909 (new combination reference)
Mesorchis dogieli (Holcman-Spector & Olagüe, 1989) Cajiao-Mora & Bullard in Cajiao-Mora, Dutton, Jacobs, Beytell, Netherlands, Du Preez & Bullard, 2025 (new combination reference)
Mesorchis elongatus (Gupta & Jahan, 1979) Cajiao-Mora & Bullard in Cajiao-Mora, Dutton, Jacobs, Beytell, Netherlands, Du Preez & Bullard, 2025 (new combination reference)
Mesorchis fusca (Lal, 1939) Cajiao-Mora & Bullard in Cajiao-Mora & Bullard in Cajiao-Mora, Dutton, Jacobs, Beytell, Netherlands, Du Preez & Bullard, 2025 (new combination reference)
Mesorchis gigantica (Gupta, 1963) Cajiao-Mora & Bullard in Cajiao-Mora & Bullard in Cajiao-Mora, Dutton, Jacobs, Beytell, Netherlands, Du Preez & Bullard, 2025 (new combination reference)
Mesorchis gracilis (Mendheim, 1940) Cajiao-Mora & Bullard in Cajiao-Mora, Dutton, Jacobs, Beytell, Netherlands, Du Preez & Bullard, 2025 (new combination reference)
Mesorchis jacaretinga (Teixeira de Freitas & Lent, 1938) Cajiao-Mora & Bullard in Cajiao-Mora, Dutton, Jacobs, Beytell, Netherlands, Du Preez & Bullard, 2025 (new combination reference)
Mesorchis magniovatus (Yamaguti, 1939) Cajiao-Mora & Bullard in Cajiao-Mora & Bullard in Cajiao-Mora, Dutton, Jacobs, Beytell, Netherlands, Du Preez & Bullard, 2025 (new combination reference)
Mesorchis microtestius Kurova, 1927 (taxonomy source)
Mesorchis nattereri (Ostrowski de Núñez, 2003) Cajiao-Mora & Bullard in Cajiao-Mora, Dutton, Jacobs, Beytell, Netherlands, Du Preez & Bullard, 2025 (new combination reference)
Mesorchis nigerica (Gupta, 1963) Cajiao-Mora & Bullard in Cajiao-Mora & Bullard in Cajiao-Mora, Dutton, Jacobs, Beytell, Netherlands, Du Preez & Bullard, 2025 (new combination reference)
Mesorchis pandei (Nath, 1973) Cajiao-Mora & Bullard in Cajiao-Mora, Dutton, Jacobs, Beytell, Netherlands, Du Preez & Bullard, 2025 (new combination reference)
Mesorchis paradenticulatus (Nasir & Rodriguez, 1969) Cajiao-Mora & Bullard in Cajiao-Mora, Dutton, Jacobs, Beytell, Netherlands, Du Preez & Bullard, 2025 (new combination reference)
Mesorchis pendulus (Looss, 1899) Dietz, 1909 (new combination reference)
Mesorchis pennanti Verma, 1936 (taxonomy source)
Mesorchis podicipei (Etchegoin & Martorelli, 1997) accepted as Mesorchis uruguayensis (Holcman-Spector & Olagüe, 1989) Cajiao-Mora & Bullard in Cajiao-Mora, Dutton, Jacobs, Beytell, Netherlands, Du Preez & Bullard, 2025 (basis of record)
Mesorchis polycestus Dietz, 1909 (taxonomy source)
Mesorchis pseudodenticulatus (Mendheim, 1940) Cajiao-Mora & Bullard in Cajiao-Mora, Dutton, Jacobs, Beytell, Netherlands, Du Preez & Bullard, 2025 (new combination reference)
Mesorchis skrjabini Dotsenko in Skrjabin & Baschkirova, 1956 (taxonomy source)
Mesorchis tringae Wang, 1976 (additional source)
Mesorchis uruguayensis (Holcman-Spector & Olagüe, 1989) Cajiao-Mora & Bullard in Cajiao-Mora, Dutton, Jacobs, Beytell, Netherlands, Du Preez & Bullard, 2025 (new combination reference)
Monilifer Dietz, 1909 accepted as Echinochasmus Dietz, 1909 (source of synonymy)
Pseudechinostomum Shchupakov, 1936 accepted as Mesorchis Dietz, 1909 (source of synonymy)
Stephanoprora Odhner, 1902 (redescription)
Stephanoprora acridotherei (Wang, 1976) accepted as Mesorchis acridotherei Wang, 1976 (additional source)
Stephanoprora advena (Shchupakov, 1936) Eslami & KIani, 2009 (status source)
Stephanoprora amurensis Tatonova, Izrailskaia & Besprozvannykh, 2020 accepted as Mesorchis amurensis (Tatonova, Izrailskaia & Besprozvannykh, 2020) Cajiao-Mora & Bullard in Cajiao-Mora, Dutton, Jacobs, Beytell, Netherlands, Du Preez & Bullard, 2025 (new combination reference)
Stephanoprora anomala Travassos, 1922 (taxonomy source)
Stephanoprora argentinensis Sutton, Lunaschi & Topa, 1982 (taxonomy source)
Stephanoprora aylacostoma Ostrowski de Núñez & Quintana, 2008 accepted as Mesorchis aylacostoma (Ostrowski de Núñez & Quintana, 2008) Cajiao-Mora & Bullard in Cajiao-Mora, Dutton, Jacobs, Beytell, Netherlands, Du Preez & Bullard, 2025 (taxonomy source)
Stephanoprora campomica Nasir & Diaz, 1971 accepted as Mesorchis jacaretinga (Teixeira de Freitas & Lent, 1938) Cajiao-Mora & Bullard in Cajiao-Mora, Dutton, Jacobs, Beytell, Netherlands, Du Preez & Bullard, 2025 (source of synonymy)
Stephanoprora chasanensis Besprozvannykh, Rozhkovan & Ermolenko, 2016 accepted as Mesorchis chasanensis (Besprozvannykh, Rozhkovan & Ermolenko, 2016) Cajiao-Mora & Bullard in Cajiao-Mora, Dutton, Jacobs, Beytell, Netherlands, Du Preez & Bullard, 2025 (new combination reference)
Stephanoprora conciliata (Dietz, 1909) Odhner, 1910 accepted as Mesorchis conciliatus Dietz, 1909 (taxonomy source)
Stephanoprora elongata Gupta & Jahan, 1979 accepted as Mesorchis elongatus (Gupta & Jahan, 1979) Cajiao-Mora & Bullard in Cajiao-Mora, Dutton, Jacobs, Beytell, Netherlands, Du Preez & Bullard, 2025 (taxonomy source)
Stephanoprora fusca Lal, 1939 accepted as Mesorchis fusca (Lal, 1939) Cajiao-Mora & Bullard in Cajiao-Mora & Bullard in Cajiao-Mora, Dutton, Jacobs, Beytell, Netherlands, Du Preez & Bullard, 2025 (taxonomy source)
Stephanoprora gigantica Gupta, 1962 accepted as Mesorchis gigantica (Gupta, 1963) Cajiao-Mora & Bullard in Cajiao-Mora & Bullard in Cajiao-Mora, Dutton, Jacobs, Beytell, Netherlands, Du Preez & Bullard, 2025 (taxonomy source)
Stephanoprora gracilis Mendheim, 1940 accepted as Mesorchis gracilis (Mendheim, 1940) Cajiao-Mora & Bullard in Cajiao-Mora, Dutton, Jacobs, Beytell, Netherlands, Du Preez & Bullard, 2025 (taxonomy source)
Stephanoprora graciosa (Suarikov, 1950) Yamaguti, 1958 (taxonomy source)
Stephanoprora iliensis (Gvozdev, 1962) (status source)
Stephanoprora jacaretinga (Teixeira de Freitas & Lent, 1938) Yamaguti, 1958 accepted as Mesorchis jacaretinga (Teixeira de Freitas & Lent, 1938) Cajiao-Mora & Bullard in Cajiao-Mora, Dutton, Jacobs, Beytell, Netherlands, Du Preez & Bullard, 2025 (taxonomy source)
Stephanoprora kasachi (Baschkirova, 1941) Yamaguti, 1958 (status source)
Stephanoprora larkanensis Saeed, Das, Bushra & Ghazi, 2018 (status source)
Stephanoprora macroovarium (Chertkova & Kosupko, 1966) accepted as Echinochasmus macroovarium Chertkova & Kosupko, 1966 (status source)
Stephanoprora magniovata Yamaguti, 1939 accepted as Mesorchis magniovatus (Yamaguti, 1939) Cajiao-Mora & Bullard in Cajiao-Mora & Bullard in Cajiao-Mora, Dutton, Jacobs, Beytell, Netherlands, Du Preez & Bullard, 2025 (taxonomy source)
Stephanoprora mahendrai (Garg, 1965) (status source)
Stephanoprora merulae Yamaguti, 1933 accepted as Mesorchis polycestus Dietz, 1909 (source of synonymy)
Stephanoprora microtestius (Kurova, 1927) Beaver, 1937 accepted as Mesorchis microtestius Kurova, 1927 (taxonomy source)
Stephanoprora minutus Bhutta & Khan, 1975 (taxonomy source)
Stephanoprora nattereri Ostrowski de Núñez, 2003 accepted as Mesorchis nattereri (Ostrowski de Núñez, 2003) Cajiao-Mora & Bullard in Cajiao-Mora, Dutton, Jacobs, Beytell, Netherlands, Du Preez & Bullard, 2025 (taxonomy source)
Stephanoprora nigerica Gupta, 1963 accepted as Mesorchis nigerica (Gupta, 1963) Cajiao-Mora & Bullard in Cajiao-Mora & Bullard in Cajiao-Mora, Dutton, Jacobs, Beytell, Netherlands, Du Preez & Bullard, 2025 (taxonomy source)
Stephanoprora odhneri Yamaguti, 1971 (status source)
Stephanoprora ornata Odhner, 1902 (redescription)
Stephanoprora ozakii (Asada, 1927) Beaver, 1937 (status source)
Stephanoprora pandei Nath, 1973 accepted as Mesorchis pandei (Nath, 1973) Cajiao-Mora & Bullard in Cajiao-Mora, Dutton, Jacobs, Beytell, Netherlands, Du Preez & Bullard, 2025 (taxonomy source)
Stephanoprora paradenticulata Nasir & Rodriguez, 1969 accepted as Mesorchis paradenticulatus (Nasir & Rodriguez, 1969) Cajiao-Mora & Bullard in Cajiao-Mora, Dutton, Jacobs, Beytell, Netherlands, Du Preez & Bullard, 2025 (taxonomy source)
Stephanoprora pendula (Looss, 1899) Odhner, 1910 accepted as Mesorchis pendulus (Looss, 1899) Dietz, 1909 (new combination reference)
Stephanoprora pennanti (Verma, 1936) Yamashita, 1937 accepted as Mesorchis pennanti Verma, 1936 (taxonomy source)
Stephanoprora pitangi (Lutz, 1924) accepted as Echinochasmus pitangi (Lutz, 1924) Beaver, 1936 (taxonomy source)
Stephanoprora podicipei Etchegoin & Martorelli, 1997 accepted as Mesorchis uruguayensis (Holcman-Spector & Olagüe, 1989) Cajiao-Mora & Bullard in Cajiao-Mora, Dutton, Jacobs, Beytell, Netherlands, Du Preez & Bullard, 2025 (source of synonymy)
Stephanoprora polycestus (Dietz, 1909) Beaver, 1937 accepted as Mesorchis polycestus Dietz, 1909 (taxonomy source)
Stephanoprora pseudodenticulata Mendheim, 1940 accepted as Mesorchis pseudodenticulatus (Mendheim, 1940) Skrjabin & Baschkirova, 1956 (taxonomy source)
Stephanoprora singularis (Lutz, 1924) Beaver, 1937 accepted as Echinoparyphium singularis (Lutz, 1924) Kohn & Fernandes, 1976 (taxonomy source)
Stephanoprora tringae (Wang, 1976) accepted as Mesorchis tringae Wang, 1976 (additional source)
Stephanoprora uruguayensis Holcman-Spector & Olagüe, 1989 accepted as Mesorchis uruguayensis (Holcman-Spector & Olagüe, 1989) Cajiao-Mora & Bullard in Cajiao-Mora, Dutton, Jacobs, Beytell, Netherlands, Du Preez & Bullard, 2025 (taxonomy source)

Namibia for Stephanoprora ornata Odhner, 1902 

 Taxonomic remark

 for Mesorchis acridotherei Wang, 1976

Cajiao-Mora, et al. (2025) claim the new combination Mesorchis acridotherei (Wang, 1976) Cajiao-Mora & Bullard, n. ... [details]

 Taxonomic remark

 for Mesorchis fusca (Lal, 1939) Cajiao-Mora & Bullard in Cajiao-Mora & Bullard in Cajiao-Mora, Dutton, Jacobs, Beytell, Netherlands, Du Preez & Bullard, 2025

Malformed suffix. Should be fuscus. DIG [details]

 Taxonomic remark

 for Mesorchis gigantica (Gupta, 1963) Cajiao-Mora & Bullard in Cajiao-Mora & Bullard in Cajiao-Mora, Dutton, Jacobs, Beytell, Netherlands, Du Preez & Bullard, 2025

Malformed suffix. Should be giganticus. DIG [details]

 Taxonomic remark

 for Mesorchis nigerica (Gupta, 1963) Cajiao-Mora & Bullard in Cajiao-Mora & Bullard in Cajiao-Mora, Dutton, Jacobs, Beytell, Netherlands, Du Preez & Bullard, 2025

Malformed suffix. Should be nigericus. DIG [details]

 Taxonomic remark

 for Mesorchis pennanti Verma, 1936

Cajiao-Mora, et al. (2025) claimed this as a new combination - Mesorchis pennati (Verma, 1936) CajiaoMora & ... [details]

 Taxonomic remark

 for Mesorchis skrjabini Dotsenko in Skrjabin & Baschkirova, 1956

Erroneously listed as a new combination by Cajiao-Mora et al. (2025) as Mesorchis skrjabini (Dotsenko in Skrjabin & ... [details]

 Taxonomic remark

 for Mesorchis tringae Wang, 1976

Cajiao-Mora et al. (2025) claim the new combination Mesorchis tringae (Wang, 1976) Cajiao-Mora & Bullard, n. comb., ... [details]

 Taxonomy

 for Stephanoprora Odhner, 1902

Monotypic, containing the type and only species: Stephanoprora ornata Odhner, 1902. [details]