Ascarophis patagonica Brugni & Viozzi, 2008 (basis of record)
Camallanus (Zeylanema) corderoi Torres, Teuber & Miranda, 1990 (additional source)
Camallanus tridentatus (Drasche, 1884) (basis of record)
Contracaecum jorgei Sardella, Mancini, Salinas, Simões & Luque, 2020 (additional source)
Cucullanus pauliceae Vaz & Pereira, 1934 (additional source)
Cucullanus pinnai pinnai Travassos, Artigas & Pereira, 1928 (additional source)
Cucullanus tridentatus Drasche, 1884 accepted as Camallanus tridentatus (Drasche, 1884) (basis of record)
Dichelyne (Cucullanellus) mariajuliae Alarcos, Timi, Etchegoin & Sardella, 2006 (additional source)
Eustrongylides tubifex (Nitzsch in Rudolphi, 1819) Jägerskiöld, 1909 (additional source)
Goezia spinulosa (Diesing, 1839) (additional source)
Hysterothylacium patagonense Moravec, Urawa & Coria, 1997 (additional source)
Hysterothylacium rhamdiae Brizzola & Tanzola, 1995 (basis of record)
Klossinemella iheringi (Travassos, Artigas & Pereira, 1928) (basis of record)
Monhysterides iheringi Travassos, Artigas & Pereira, 1928 accepted as Klossinemella iheringi (Travassos, Artigas & Pereira, 1928) (basis of record)
Neocucullanus marcelae Ramallo, 2012 (basis of record)
Philonema percichthydis Moravec, Urawa & Coria, 1997 accepted as Pseudodelphis percichthydis (Moravec, Urawa & Coria, 1997) Moravec, Novacovsky & Hernández-Orts, 2018 (additional source)
Placonema Brugni, Viozzi, Fernández & Vega, 2009 (basis of record)
Placonema pataguense Brugni, Viozzi, Fernández & Vega, 2009 (basis of record)
Procamallanus (Denticamallanus) ana Ramallo, 2011 (basis of record)
Procamallanus cearensis Pereira, Dias & Azevedo, 1936 accepted as Procamallanus (Spirocamallanus) hilarii Vaz & Pereira, 1934 (source of synonymy)
Procamallanus fariasi Pereira, 1935 accepted as Procamallanus (Spirocamallanus) inopinatus Travassos, Artigas & Pereira, 1928 (source of synonymy)
Procamallanus intermedius Pinto, Fábio, Noronha & Rolas, 1974 accepted as Procamallanus (Spirocamallanus) pimelodus Pinto, Fábio, Noronha & Rolas, 1974 (source of synonymy)
Procamallanus probus Pinto & Fernandes, 1972 accepted as Procamallanus (Spirocamallanus) inopinatus Travassos, Artigas & Pereira, 1928 (source of synonymy)
Procamallanus wrighti Pereira, 1935 accepted as Procamallanus (Spirocamallanus) inopinatus Travassos, Artigas & Pereira, 1928 (source of synonymy)
Pseudodelphis limnicola Brugni & Viozzi, 2006 accepted as Pseudodelphis percichthydis (Moravec, Urawa & Coria, 1997) Moravec, Novacovsky & Hernández-Orts, 2018 (additional source)
Raphidascaris (Sprentascaris) marano Ramallo, 2009 (additional source)
Raphidascaris (Sprentascaris) saltaensis Ailán-Choke, Ramallo & Davies, 2017 (additional source)
Rondonia rondoni Travassos, 1920 (additional source)
Spectatus spectatus Travassos, 1923 (basis of record)
Spinitectus asperus Travassos, Artigas & Pereira, 1928 (additional source)
Spinitectus jamundensis Thatcher & Padilha, 1977 accepted as Spinitectus asperus Travassos, Artigas & Pereira, 1928 (source of synonymy)
Spirocamallanus hilarii (Vaz & Pereira, 1934) accepted as Procamallanus (Spirocamallanus) hilarii Vaz & Pereira, 1934 (basis of record)
Spirocamallanus huacraensis Ramallo, 2008 accepted as Procamallanus (Spirocamallanus) huacraensis Ramallo, 2008 (basis of record)
Spirocamallanus incarocai Freitas & Ibañez, 1970 accepted as Procamallanus (Spirocamallanus) hilarii Vaz & Pereira, 1934 (source of synonymy)
Spirocamallanus inopinatus (Travassos, Artigas & Pereira, 1928) accepted as Procamallanus (Spirocamallanus) inopinatus Travassos, Artigas & Pereira, 1928 (basis of record)
Spirocamallanus juana Ramallo & Ailán Choke, 2017 accepted as Procamallanus (Spirocamallanus) juana Ramallo & Ailan Choke, 2017 (basis of record)
Spirocamallanus neocaballeroi Caballero-Deloya, 1977 accepted as Procamallanus (Spirocamallanus) neocaballeroi (Caballero-Deloya, 1977) (basis of record)
Spirocamallanus pimelodus (Pinto, Fábio, Noronha & Rolas, 1974) accepted as Procamallanus (Spirocamallanus) pimelodus Pinto, Fábio, Noronha & Rolas, 1974 (basis of record)
Spirocamallanus pintoi Kohn & Fernandes, 1988 accepted as Procamallanus (Spirocamallanus) pintoi (Kohn & Fernandes, 1988) (basis of record)
Spirocamallanus rarus (Travassos, Artigas & Pereira, 1928) accepted as Procamallanus (Spirocamallanus) rarus Travassos, Artigas & Pereira, 1928 (basis of record)
Spirocamallanus tomsici Ramallo & Ailán Choke, 2020 accepted as Procamallanus (Spirocamallanus) tomsici Ramallo & Ailán-Choke in Ramallo, Cancino, Ruiz & Ailán-Choke, 2020 (basis of record)

Buenos Aires for Dichelyne (Cucullanellus) mariajuliae Alarcos, Timi, Etchegoin & Sardella, 2006 
Buenos Aires for Hysterothylacium rhamdiae Brizzola & Tanzola, 1995 
Catamarca for Spirocamallanus huacraensis Ramallo, 2008 
Chubut for Camallanus tridentatus (Drasche, 1884) 
Córdoba for Contracaecum jorgei Sardella, Mancini, Salinas, Simões & Luque, 2020 
Corrientes for Cucullanus pauliceae Vaz & Pereira, 1934 
Corrientes for Cucullanus pinnai pinnai Travassos, Artigas & Pereira, 1928 
Corrientes for Goezia spinulosa (Diesing, 1839) 
Corrientes for Klossinemella iheringi (Travassos, Artigas & Pereira, 1928) 
Corrientes for Rondonia rondoni Travassos, 1920 
Corrientes for Spectatus spectatus Travassos, 1923 
Corrientes for Spinitectus asperus Travassos, Artigas & Pereira, 1928 
Corrientes for Spirocamallanus inopinatus (Travassos, Artigas & Pereira, 1928) 
Corrientes for Spirocamallanus rarus (Travassos, Artigas & Pereira, 1928) 
Neuquén for Camallanus (Zeylanema) corderoi Torres, Teuber & Miranda, 1990 
Neuquén for Camallanus tridentatus (Drasche, 1884) 
Neuquén for Eustrongylides tubifex (Nitzsch in Rudolphi, 1819) Jägerskiöld, 1909 
Neuquén for Hysterothylacium patagonense Moravec, Urawa & Coria, 1997 
Rio Negro for Ascarophis patagonica Brugni & Viozzi, 2008 
Rio Negro for Camallanus (Zeylanema) corderoi Torres, Teuber & Miranda, 1990 
Rio Negro for Camallanus tridentatus (Drasche, 1884) 
Rio Negro for Eustrongylides tubifex (Nitzsch in Rudolphi, 1819) Jägerskiöld, 1909 
Rio Negro for Hysterothylacium patagonense Moravec, Urawa & Coria, 1997 
Rio Negro for Philonema percichthydis Moravec, Urawa & Coria, 1997 
Rio Negro for Placonema pataguense Brugni, Viozzi, Fernández & Vega, 2009 
Rio Negro for Pseudodelphis limnicola Brugni & Viozzi, 2006 
Salta for Cucullanus pinnai pinnai Travassos, Artigas & Pereira, 1928 
Salta for Neocucullanus marcelae Ramallo, 2012 
Salta for Procamallanus (Denticamallanus) ana Ramallo, 2011 
Salta for Raphidascaris (Sprentascaris) saltaensis Ailán-Choke, Ramallo & Davies, 2017 
Salta for Spinitectus asperus Travassos, Artigas & Pereira, 1928 
Salta for Spirocamallanus hilarii (Vaz & Pereira, 1934) 
Salta for Spirocamallanus huacraensis Ramallo, 2008 
Salta for Spirocamallanus inopinatus (Travassos, Artigas & Pereira, 1928) 
Salta for Spirocamallanus pintoi Kohn & Fernandes, 1988 
Salta for Spirocamallanus tomsici Ramallo & Ailán Choke, 2020 
Santa Fé for Cucullanus pinnai pinnai Travassos, Artigas & Pereira, 1928 
Santa Fé for Spirocamallanus inopinatus (Travassos, Artigas & Pereira, 1928) 
Santa Fé for Spirocamallanus neocaballeroi Caballero-Deloya, 1977 
Santa Fé for Spirocamallanus pimelodus (Pinto, Fábio, Noronha & Rolas, 1974) 
Santiago del Estero for Contracaecum rudolphii Hartwich, 1964 
Santiago del Estero for Cucullanus pinnai pinnai Travassos, Artigas & Pereira, 1928 
Santiago del Estero for Spinitectus asperus Travassos, Artigas & Pereira, 1928 
Santiago del Estero for Spirocamallanus hilarii (Vaz & Pereira, 1934) 
Santiago del Estero for Spirocamallanus juana Ramallo & Ailán Choke, 2017 
Tucumán for Cucullanus pinnai pinnai Travassos, Artigas & Pereira, 1928 
Tucumán for Raphidascaris (Sprentascaris) marano Ramallo, 2009 
Tucumán for Spinitectus asperus Travassos, Artigas & Pereira, 1928 
Tucumán for Spirocamallanus hilarii (Vaz & Pereira, 1934)