| Arrenurus (Arrenurus) dentipetiolatus | Oaxaca, Guanajuato | Pond | Marshall 1908 |
|---|
| Arrenurus (Arrenurus) valencius | Campeche, Tabasco | Water-filled roadside | Marshall 1919 |
|---|
| Arrenurus (Arrenurus) munovus | Chiapas | Stream | Cook 1980 |
|---|
| Arrenurus (Arrenurus) wucabus | Oaxaca | Pond | Cook 1980 |
|---|
| Arrenurus (Arrenurus) tamauulipensis | Tamaulipas | Lake | Cook 1980 |
|---|
| Arrenurus (Arrenurus) xochimilcoensis | Mexico City | Standing waters | Cramer and Cook 1992 |
|---|
| Arrenurus (Megaluracarus) manubriator | Tabasco | Pond | Marshall 1903 |
|---|
| Arrenurus (Megaluracarus) birgei | Campeche | Lagoon | Marshall 1903 |
|---|
| Arrenurus (Megaluracarus) marshallae | Campeche | Water-filled ditch | Piersig 1904 |
|---|
| Arrenurus (Megaluracarus) gricalus | Veracruz | Pond | Cook 1980 |
|---|
| Arrenurus (Megaluracarus) hartesus | Tabasco | Pond | Cook 1980 |
|---|
| Arrenurus (Megaluracarus) neoexpansus | Tabasco | Pond | Cook 1980 |
|---|
| Arrenurus (Megaluracarus) tabascoensis | Campeche | Water-filled ditch | Cook 1980 |
|---|
| Arrenurus (Megaluracarus) trassamus | Tabasco | Pond | Cook 1980 |
|---|
| Arrenurus (Megaluracarus) zitavus | Campeche | Water filled-ditch | Cook 1980 |
|---|
| Arrenurus (Megaluracarus) campechensis | Campeche | Water filled-ditch | Cook 1980 |
|---|
| Arrenurus (Megaluracarus) wolardus | Veracruz, Colima | Pond | Cook 1980 |
|---|
| Arrenurus (Megaluracarus) costeroae | Tamaulipas | Lake | Cramer and Cook 1992 |
|---|
| Arrenurus (Megaluracarus) alloexpansus | Colima | Not specified | Cramer and Cook 1992 |
|---|
| Arrenurus (Megaluracarus) apizanus | Tamaulipas | Lake | Cramer and Cook 1992 |
|---|
| Arrenurus (Megaluracarus) catoi | Tamaulipas | Lake | Cramer and Cook 1992 |
|---|
| Arrenurus (Megaluracarus) champayanus | Tamaulipas | Lake | Cramer and Cook 1992 |
|---|
| Arrenurus (Megaluracarus) colitus | Tamaulipas | Lake | Cramer and Cook 1992 |
|---|
| Arrenurus (Megaluracarus) anae | Tamaulipas | Lake | Cramer and Cook 1998 |
|---|
| Arrenurus (Megaluracarus) anitahoffmannae | Tabasco | Lake, pond, canal | Ramirez-Sánchez and Rivas 2013 |
|---|
| Arrenurus (Megaluracarus) olmeca | Tabasco | Lake, pond, canal | Ramirez-Sánchez and Rivas 2013 |
|---|
| Arrenurus (Megaluracarus) maya | Yucatán, Quintana Roo | Cenote | Ramirez-Sánchez and Rivas 2013 |
|---|
| Arrenurus (Megaluracarus) urbanus | Mexico city | Canal | Ramirez-Sánchez and Rivas 2013 |
|---|
| Arrenurus (Megaluracarus) eduardoi | Quintana Roo | Pool (in a stream) | Montes-Ortiz et al.2022 |
|---|
| Arrenurus (Megaluracarus) federicoi | Quintana Roo | Pool (in a stream) | Montes-Ortiz et al.2022 |
|---|
| Arrenurus (Megaluracarus) ecosur | Quintana Roo | Cenote, lagoon, wetlands | Montes-Ortiz et al.2022 |
|---|
| Arrenurus (Megaluracarus) beatrizae | Quintana Roo, Tabasco | Wetland, lagoon | Montes-Ortiz et al.2022 |
|---|
| Arrenurus (Dadayella) zempoala | Mexico state | Small stream | Cook 1980 |
|---|
| Arrenurus (Dadayella) adrianae | Colima, Michoacan | Wetland, lagoon | Cramer and Cook 1992 |
|---|
| Arrenurus (Dadayella) veracruzensis | Veracruz | Pond | Cramer and Cook 1992 |
|---|
| Arrenurus (Dadayella) aztecus | Veracruz | Wetland, lagoon | Cramer and Cook 1992 |
|---|
| Arrenurus (Dadayella) colimensis | Colima | Wetland, lagoon | Cramer and Cook 1992 |
|---|
| Arrenurus (Dadayella) cristinae | Quintana Roo | Wetland | Montes-Ortiz et al.2022 |
|---|
| Arrenurus (Truncaturus) plevamus | Guerrero | Small stream | Cook 1980 |
|---|
| Arrenurus (Truncaturus) zukovus | Chiapas | Gravel-bottom stream | Cook 1980 |
|---|
| Arrenurus (Truncaturus)teoceloensis | Veracruz | Stream | Rivas and Cramer 1992 |
|---|
| Arrenurus (?Arrhenuropsis) mexicanus | Tamaulipas, Colima | Lagoon | Cramer and Cook 1992 |
|---|
| Arrenurus (?) nayaritensis | Nayarit | Small stream | Cook 1980 |
|---|
| Hydrachnidae | | | |
|---|
| Hydrachna miliaria | Oaxaca | Pond | Berlese 1888 in Cook 1980 |
|---|
| Hydrachna leovazquezae | Mexico state | Temporal pond | Cramer and Costero 1986 |
|---|
| Hydrachna guanajuatensis | Guanajuato | Pond | Cook 1980 |
|---|
| Hydrachna mexicana | Veracruz | Pond | Cook 1980 |
|---|
| Hydrachna rotunda | Oaxaca, Nayarit, Guanajuato. | Pond | Marshall 1930 in Cook 1980 |
|---|
| Limnocharidae | | | |
|---|
| Rhyncholimnochares (Rhyncholimnochares) | Chiapas | River | Cook 1980 |
|---|
| Rhyncholimnochares (Paralimnochares) | Chiapas | River | Cook 1980 |
|---|
| Eylaidae | | | |
|---|
| Eylais guanajuatensis | Guanajuato | * | Dugés 1873 |
|---|
| Eylais mexicana | Mexico state | Helocrene spring | Cook 1980 |
|---|
| Hydriyphantidae |
|---|
| Hydryphantes (Hydryphantes) ramosus ramosus Oaxaca | Pond | Daday 1905 in Cook 1980 |
|---|
| Thyopsella obscura | Mexico state. | Helocrene spring | Cook 1980 |
|---|
| Protzia | Querétaro | Stream | Goldschmidt et al. 2015 |
|---|
| Hydrodromidae | | | |
|---|
| Hydrodroma peregrina perigrina | Campeche, Guanajuato | Pond | Lundblad 1941 in Cook 1980 |
|---|
| Hydrodroma (Clavipes) despisciens | Oaxaca, Chiapas, Veraruz, San Luis Potosí. | Stream, river. | Lundblad 1953 in Cook 1980 |
|---|
| Rhynchohydracaridae |
|---|
| Clathrosperchon punctatus | Oaxaca, Chiapas, Veracruz. | Matted roots, bottom of stream | Cook 1980 |
|---|
| Sperchontidae |
|---|
| Sperchon mexicanus | Mexico state | Stream | Cook 1980 |
|---|
| Sperchon neotropicus | Oaxaca, Coahuila, Veracruz. | Algae on rocks, stream | Cook 1980 |
|---|
| Sperchon (Hispidopershon) gledhilli | Oaxaca, Veracruz, Guerrero. | Stream | Viets 1977 |
|---|
| Sperchon (Acadiosperchon) pontifex | Oaxaca | Submerged vegetation | Otero-Colina 1987a |
|---|
| Sperchon (Mixosperchon) oaxacensis | Oaxaca | Submerged vegetation | Otero-Colina 1987a |
|---|
| Anisitsiellidae |
|---|
| Bandakia hoffmannae | Mexico state. | Spring | Cramer and Smith 1991 |
|---|
| Bandakia mexicana | Mexico state. | Spring | Cramer and Smith 1991 |
|---|
| Mamersella mesoamericana | Tabasco | Lagoon | Otero-Colina 1987a |
|---|
| Mamersellides costenius | Veracruz, Colima, Estados Unidos (Florida) | Ponds, Marshes, backwater pools of streams. | Cramer and Smith 1993 |
|---|
| Lebertiidae |
|---|
| Lebertia (Pseudolebertia) azteca | Mexico state | Stream | Cook 1980 |
|---|
| Oxidae | | | |
|---|
| Oxus dugesi | Veracruz, Costa Rica | Stream | Cook 1980 |
|---|
| Oxus stolli | Guerrero | Tributary river | Cook 1980 |
|---|
| Torrenticolidae |
|---|
| Torrenticola (Monoatractides) lembada | Chiapas, Costa Rica | Stream, river. | Cook 1980 |
|---|
| Torrenticola (Monoatractides) gorda | Nayarit, Guerrero, Oaxaca | River | Cook 1980 |
|---|
| Torrenticola (Monoatractides) veracruzensis | Veracruz, Chiapas | Stream | Cook 1980 |
|---|
| Torrenticola (Torrenticola) rala | Guerrero | River | Cook 1980 |
|---|
| Torrenticola (Torrenticola) keesdavidsi | Mexico state. | Stream | Cramer 1992 |
|---|
| Torrenticola (Torrenticola) carlbaderi | Mexico state. | Stream | Cramer 1992 |
|---|
| Torrenticola (Torrenticola) esbelta | Mexico state. | Stream | Cramer 1992 |
|---|
| Torrenticola (Torrenticola) kurtvietsi | Mexico state | Stream | Cramer 1992 |
|---|
| Neotorrenticola (Neotorrenticola) davecooki | Mexico state | Stream | Cramer 1987 |
|---|
| Pseudotorrenticola (Pseudotorrenticola) | Veracruz | Stream | Cramer and Cook 2000 |
|---|
| Pseudotorrenticola (Psedotorrenticola) boettgeri | Veracruz | Stream | Viets 1977 in Cramer and Cook 2000 |
|---|
| Limnesiidae | | | |
|---|
| Neomamersa (Neomamersa) mexicana | Oaxaca, Guerrero | Bottom deposits of stream | Cook 1980 |
|---|
| Neomamersa (Neomamersa) triacebulata | Chiapas | Gravels deposits of stream | Cook 1980 |
|---|
| Neomamersa (Neomamersa) temazcala | Mexico state | Stream | Cramer 1987 |
|---|
| Meramecia (Meramecia)mexicana | Chiapas, Oaxaca, Puebla | Gravel deposits of stream | Cook 1980 |
|---|
| Kawamuracarus (Kawamuracarus) expansipes | Oaxaca, Chiapas | Gravel deposits of stream | Cook 1980 |
|---|
| Kawamuracarus (Kawamuracarus) novus | Puebla | Gravel deposits of stream | Cook 1980 |
|---|
| Kawamuracarus (Kawamuracarus) iansmithi | Mexico state | Stream | Cramer 1987 |
|---|
| Tyrrelia viuda | Puebla | Stream | Cook 1980 |
|---|
| Tyrrelia ovalis | Puebla, Mexico state | Stream | Marshall 1940 in Cook 1980 |
|---|
| Centrolimnesia (Centrolimnesia)motasi | Chiapas | Pond | Cook 1980 |
|---|
| Centrolimnesia (Centrolimnesia) bondi | Veracruz, Campeche | Swam, Pond | Lundblad 1935 in Cook 1980 |
|---|
| Limnesia alzatei | Guanajuato | * | Dugés 1884 |
|---|
| Limnesia laeta | Oaxaca, Tabasco | Pond | Stoll 1887 in Cook 1980 |
|---|
| Limnesia puteorum | Guanajuato | * | Stoll 1987 in Wolcott 1903 |
|---|
| Limnesia (Limnesia) abenda | Mexico state | Helocrene spring | Cook 1980 |
|---|
| Limnesia (Limnesia) banola | Nayarit, Veracruz | Spring | Cook 1980 |
|---|
| Limnesia (Limnesia) canvada | Nayarit | River | Cook 1980 |
|---|
| Limnesia (Limnesia) dimorpha | Nayarit | Spring | Cook 1980 |
|---|
| Limnesia (Limnesia) dornera | Veracruz | Stream | Cook 1980 |
|---|
| Limnesia (Limnesia) mesoamericana | Guerrero, Oaxaca, Chiapas, Morelos, Nayarit | River, stream | Cook 1980 |
|---|
| Limnesia (Limnesia) neodentipalpis | Veracruz | Pond | Cook 1980 |
|---|
| Limnesia (Limnesia) setacoxalis | Veracruz, Chiapas, Guerrero | Stream | Cook 1980 |
|---|
| Limnesia (Limnesia) trehona | Guerrero | Spring | Cook 1980 |
|---|
| Limnesia (Limnesia) zomplina | Nayarit, Veracruz | Pond | Cook 1980 |
|---|
| Limnesia (Limnesiella) mexicana | Tabasco | Pond | Cook 1980 |
|---|
| Limnesia parafalsificata | Tabasco, Chiapas | Pond | Otero-Colina 1987a |
|---|
| Psammolimnesia (Psammolimnesia) mexicana | Chiapas | | Cook 1974 |
|---|
| Omartacaridae |
|---|
| Omartacarus elongatus | Puebla | Interstitial waters | Cook 1963 in Cook 1980 |
|---|
| Omartacarus brevipalpis | Chiapas | Interstitial waters | Cook 1974 |
|---|
| Omartacarus motasi | Chiapas | Sand and gravel of stream | Cook 1980 |
|---|
| Hygrobatidae | | | |
|---|
| Corticacarus novum | Veracruz | Stream | Cramer and Cook 1998 |
|---|
| Corticacarus (Paracorticacarus) mexicanus | Guerrero, Oaxaca, Chiapas | Stream | Cook 1980 |
|---|
| Corticacarus (Polycorticacarellus) similis | Guerrero | Stream | Cook 1980 |
|---|
| Corticacarus (Polycorticacarellus) mebosus | Chiapas, Veracruz | River | Cook 1980 |
|---|
| Neoatractides curvispinatus | Tabasco | Gravel in a stream | Otero-Colina 1987a |
|---|
| Neotractides mexicana | Mexico state | Stream | Cramer 1992 |
|---|
| Neoatractides nayaritensis | Nayarit | Stream | Cramer and Cook 2000 |
|---|
| Neoatractides abueloi | Veracruz | Stream | Cramer and Cook 2000 |
|---|
| Neoatractides celiae | Veracruz | Stream | Cramer and Cook 2000 |
|---|
| Hygrobates (Hygrobates) boettgeri | Oaxaca, Chiapas, Guerrero, Morelos, Nayarit | Stream | Viets 1975 in Cook 1980 |
|---|
| Hygrobates (Hygrobates) plebejus | Oaxaca, Chiapas, Veracruz, Morelos, Nayarit. | River | Lundblad 1930 in Cook 1930 |
|---|
| Hygrobates (Hygrobates) amplipalpis | Oaxaca, Veracruz | Stream | Viets 1936 in Cook 1980 |
|---|
| Hygrobates (Hygrobates) ampliatus | Veracruz, San Luis Potosí, Morelos | Stream | Viets 1936 in Cook 1980 |
|---|
| Hygrobates (Hygrobates) procursus | Guerrero | Stream | Viets 1936 in Cook 1980 |
|---|
| Hygrobates (Hygrobates) blatolus | Oaxaca | Tributary river | Cook 1980 |
|---|
| Hygrobates (Hygrobates) mexicanus | Nayarit | River | Cook 1980 |
|---|
| Atractides (Atractides) crassitarsis | Guerrero | Stream | Lundblad 1942 in Cook 1980 |
|---|
| Atractides (Atractides) imitatus | Oaxaca | River | Viets 1978 in Cook 1980 |
|---|
| Atractides (Atractides) guatemaltecus | Oaxaca, Chiapas, Guerrero. | Tributary river, stream | Viets 1978 in Cook 1980 |
|---|
| Atractides (Atractides) blazonus | Oaxaca | Tributary river | Cook 1980 |
|---|
| Atractides (Atractides) mexicanus | Oaxaca | Tributary river | Cook 1980 |
|---|
| Atractides (Atractides) neolongitarsus | Coahuila | River | Cook 1980 |
|---|
| Atractides (Atractides) prasadi | Chiapas | Stream | Cook 1980 |
|---|
| Atractides (Atractides) tanutus | Mexico state | Stream | Cook 1980 |
|---|
| Atractides (Atractides) tembolus | Chiapas | Stream | Cook 1980 |
|---|
| Atractides (Atractides) tolas | Chiapas | Stream | Cook 1980 |
|---|
| Atractides (Atractides) toldomus | Coahuila | River | Cook 1980 |
|---|
| Atractides (Atractides) travanus | Chiapas, Oaxaca, Guerrero | Stream | Cook 1980 |
|---|
| Atractides (Atractides) wevamus | Nayarit | River bottom deposits | Cook 1980 |
|---|
| Atractides (Atractides) zempoalus | Mexico state | Stream | Cook 1980 |
|---|
| Atractides (Atractides) bassolsae | Oaxaca | Stream | Otero-Colina 1987a |
|---|
| Atractides (Octomegapus) peltatus | Chiapas | River | Viets 1977 in Cook 1980 |
|---|
| Atractidella obtusidens | Oaxaca, Chiapas, Veracruz | River, stream | Lundblad 1953 in Cook 1980 |
|---|
| Atractidella mesoamericana | Chiapas | Stream | Cook 1980 |
|---|
| Paraschizobates scutatus | Nayarit, Chiapas, Oaxaca | River, stream | Cook 1980 |
|---|
| Diamphidaxona mexicana | Chiapas | Gravel deposits in stream | Cook 1980 |
|---|
| Diamphidaxona anitae | Mexico state | Stream | Cramer and Letechipía 1996 |
|---|
| Unionicolidae |
|---|
| Unionicola gracilipalpis tenuis | Oaxaca, Campeche | Pond, water filled roadside | Lundblad 1935 in Cook 1980 |
|---|
| Unionicola (Unionicola) mexicana | Tabasco | Pond | Cook 1980 |
|---|
| Unionicola (Pentatax) conjuncta | Chiapas | Stream | Viets 1954 in Cook 1980 |
|---|
| Unionicola (Pentatax) furculopsis | Oaxaca | Pond | Cook 1980 |
|---|
| Unionicola (Pentatax) aculeata | Tamaulipas, northern and central Mexico | Freshwater mussel Anodonta sp., Cyrtonaias tampicoensis, Disconaias sp., Friersonia sp. | Koenike 1914 in Vidrine 1996 |
|---|
| Unionicola (Atacella) neoperforata | Tamaulipas, San Luis Potosí. | Freshwater mussel A. trapesialis glaucus | Vidrine 1985b |
|---|
| Unionicola (Atacella) petita | Veracruz | Freshwater mussel A. trapesialis glaucus | Vidrine 1985b |
|---|
| Unionicola (Atacella) entrerrianensis | Tamaulipas, San Luis Potosí, Veracruz. | Freshwater mussel A. trapesialis glaucus | Rosso de Ferradás 1976 |
|---|
| Unionicola (Atacella) fissipes | Western Mexico | Freshwater mussel Anodontites | Koenike, 1891 |
|---|
| Unionicola (Berezatax) berezai | Veracruz, San Luis Potosí | Freshwater mussel Nephronaias sp. | Vidrine 1985a |
|---|
| Unionicola (Berezatax) acylindrotarsa | Tamaulipas, San Luis Potosí | Freshwater mussel Popenaias, Nephronaias | Vidrine 1985a |
|---|
| Unionicola (Causeyatax) hensleyi | San Luis Potosí, Tamaulipas | Freshwater mussel Friersonia iridella | Vidrine 1985c |
|---|
| Unionicola (Clarkatax) serrata | San Luis Potosí, Tamaulipas, Veracruz (Panuco river system) | Friersonia iridella, F. moctezumensis | Wolcott 1898 in Vidrine 1996 |
|---|
| Unionicola (Hexatax) laurentiana | San Luis Potosí, Tamaulipas, Veracruz (Panuco river system) | Freshwater mussel Disconaias fimbriata, Nephronaias sp., Popenaias sp. | Crowell and Davids 1979 in |
|---|
| Unionicola (Unionicolides) burchi | Guanajuato | Freshwater mussel Anodonta sp. | Vidrine 1996 |
|---|
| Unionicola (Unionicolides) calnani | Tamaulipas, Veracruz | Freshwater mussel Cyrtonaias tampicoensis, Disconaias discus. | Vidrine 1986 |
|---|
| Unionicola (Unionicolides) hoesei | San Luis Potosí, Tamaulipas, Veracruz (Panuco river system) | Freshwater mussel | Vidrine 1986 |
|---|
| Unionicola (Neoatax) abnormipes | Tamaulipas | Freshwater mussel Cyrtonaias tampicoensis | Vidrine 1986 |
|---|
| Neumania (Neumania) conroyi | Mexico state | Reocrene spring | Cook 1980 |
|---|
| Neumania (Neumania) diversipalpa | Chiapas | River | Cook 1980 |
|---|
| Neumania (Neumania) alticola | Chiapas, Campeche, Oaxaca, Tabasco, Veracruz. | Pond, stream. | Stoll 1886 in Cook 1980 |
|---|
| Neumania (Tetraneumania) nondanda | Chiapas, Tabasco, Campeche | River | Cook 1980 |
|---|
| Neumania (Tetraneumania) cesateca | Tabasco, Chiapas | River, Pond | Otero-Colina 1987b |
|---|
| Recifella (Recifella) bella | Veracruz, Chiapas | River, stream | Cook 1980 |
|---|
| Recifella (Eorecifella?) azteca | Oaxaca | Pond | Cook 1980 |
|---|
| Recifella (Eorecifella) cemoba | Chiapas | Stream | Cook 1980 |
|---|
| Recifella (Eorecifella) laversi | Chiapas | River | Cook 1980 |
|---|
| Recifella (Eorecifella) alpa | Veracruz | Stream | Cook 1980 |
|---|
| Recifella (Eorecifella) indistincta | Yucatán | Cenote (Sinkhole) | Marshall 1936 in Cook 1980 |
|---|
| Recifella (Recifellopsis) mexicana | Chiapas, Veracruz | Stream | Cook 1980 |
|---|
| Recifella (Vietsella)veracruzana | Veracruz | Pond | Cramer and Cook 1998 |
|---|
| Koenikea (Koenikea) canerma | Tabasco | Pond | Cook 1980 |
|---|
| Koenikea (Koenikea) clazona | Veracruz | Stream | Cook 1980 |
|---|
| Koenikea (Koenikea) gracilipes | Nayarit, Chiapas, Guerrero | Stream | Cook 1980 |
|---|
| Koenikea (Koenikea) tobarana | Nayarit | River, stream | Cook 1980 |
|---|
| Koenikea (Koenikea) trocala | Guerrero | Spring | Cook 1980 |
|---|
| Koenikea (Koenikea) yenona | Nayarit | Tributary river | Cook 1980 |
|---|
| Koenikea (Koenikea) zedima | Chiapas, Tabasco | River | Cook 1980 |
|---|
| Koenikea (Koenikea) zolada | Veracruz | River | Cook 1980 |
|---|
| Koenikea mesoamericana | Chiapas | Stream | Cook 1980 |
|---|
| Koenikea (?Diplokoenikea) bispina | Veracruz | River | Cook 1980 |
|---|
| Koenikea (?Diplokoenikea) blepta | Guerrero | Stream | Cook 1980 |
|---|
| Koenikea (?Diplokoenikea) beltista | Chiapas, Veracruz, Puebla. | River | Cook 1980 |
|---|
| Koenikea (Diplokoenikea) neopectinifera | Campeche, Tabasco | Waterfilled ditch, pond | Cook 1980 |
|---|
| Koenikea (Diplokoenikea) clavigera | Chiapas, Oaxaca | Pond | Lundblad 1943 in Cook 1980 |
|---|
| Koenikea (Notomideopsis) paragrossa | Oaxaca | Pond | Cook 1980 |
|---|
| Koenikea (Notomideopsis) sexmaculata | Oaxaca, Veracruz | Pond | Cook 1980 |
|---|
| Koenikea (Notomideopsis) toloma | Veracruz | Stream | Cook 1980 |
|---|
| Koenikea (Notomideopsis) veracruzensis | Veracruz | Stream | Cook 1980 |
|---|
| Koenikea (Notomideopsis) nayaritensis | Nayarit | Spring | Cook 1980 |
|---|
| Koenikea (Notomideopsis) taninulensis | San Luis Potosí | Sulphurous stream | Cramer 1983 |
|---|
| Koenikea (Sespekoenikea) chiapasana | Chiapas | Stream | Cook 1980 |
|---|
| Koenikea (Sespekoenikea) piotiformis | Nayarit, Guerrero | River | Cook 1980 |
|---|
| Koenikea (Tanaognathus) kurtvietsi | Guerrero | River | Cook 1980 |
|---|
| Koenikea (Parakoenikea) curvipalpis | Oaxaca | River | Lundblad 1936 in Cook 1980 |
|---|
| Pionidae | | | |
|---|
| Piona bromada | Tabasco, Campeche, Veracruz, Oaxaca. | Pond, waterfilled ditch | Cook 1980 |
|---|
| Piona mexicana | Veracruz | Stream | Cook 1980 |
|---|
| Piona neoacutidens | Veracruz | Stream | Cook 1980 |
|---|
| Piona (Piona) triangularis | * | * | Wolcott1902 in Marín-Hernández and Cramer-Hemkes 2009 |
|---|
| Piona (Tetrapiona) rotunda sudamericana | * | * | Viets 1910 in Marín-Hernández and Cramer-Hemkes 2009 |
|---|
| Piona alzatei | * | * | Dugés 1884 |
|---|
| Piona pearsei | * | * | Marshall 1936 |
|---|
| Piona amimitli | Mexico city | Stream | Marín-Hernández 2009 |
|---|
| Aturidae |
|---|
| Aturus matlatzinca | Mexico state | Stream | Cramer 1991 |
|---|
| Aturus catoantoni | Mexico state | Stream | Cramer 1991 |
|---|
| Aturus guillecrameri | Mexico state | Stream | Cramer 1992 |
|---|
| Aturus celiahemkesae | Mexico state | Stream | Cramer 1992 |
|---|
| Aturus oxtotilpanensis | Mexico state | Stream | Cramer 1992 |
|---|
| Aturus primitivus | Mexico state | Stream | Cramer 1991 |
|---|
| Neoaturus kurtvietsi | Oaxaca, Chiapas, Veracruz, Guerrero | River, stream | Cook 1980 |
|---|
| Neoaturus projectus | Veracruz | River | Lundblad 1936 in Cook 1980 |
|---|
| Adelaxonopsella pallida | Veracruz | Interstitial water stream | Cook 1974 |
|---|
| Albia (Anchistalbia) iantha | Nayarit | Spring | Cook 1980 |
|---|
| Albia (Anchistalbia) ianthopsis | Quintana Roo | Lagoon | Otero-Colina 1987b |
|---|
| Axonopsella (?) mesoamericana | Guerrero, Morelos, Nayarit | River | Cook 1980 |
|---|
| Axonopsella (Neoaxonopsella) nayaritensis | Nayarit | Cataracts | Cook 1980 |
|---|
| Axonopsella (Neoaxonopsella) vicina | Veracruz | Stream | Cook 1980 |
|---|
| Axonopsis (Brachypodopsis) columbicola | Chiapas, Oaxaca, Puebla. Nayarit | River, stream | Lundblad 1953 in Cook 1980 |
|---|
| Axonopsis (Brachypodopsis) cemoba | Veracruz | Stream | Cook 1980 |
|---|
| Axonopsis (Brachypodopsis) cerucha | Veracruz, San Luis Potosí | River, Stream | Cook 1980 |
|---|
| Axonopsis (Brachypodopsis) mesoamericana | Veracruz, Chiapas | Stream | Cook 1980 |
|---|
| Axonopsis (Brachypodopsis) trocala | Chiapas | Chiapas | Cook 1980 |
|---|
| Polyaxonopsella mexicana | Oaxaca | Stream | Otero-Colina 1987b |
|---|
| Frontipodopsis mesoamericana | Chiapas | Bottom deposits of stream | Cook 1980 |
|---|
| Kongsbergia antoniocatoi | Mexico state | Gravel deposits of stream | Cramer 2000 |
|---|
| Kongsbergia cosita | Mexico state | Gravel deposits of stream | Cramer 2000 |
|---|
| Kongsbergia tigrina | Mexico state | Stream | Cramer 2000 |
|---|
| Kongsbergia eterna | Mexico state | Stream | Cramer 2000 |
|---|
| Kongsbergia (Kongsbergia) mexicana | Oaxaca | River | Cook 1980 |
|---|
| Kongsbergia glopipalpis | Chiapas and Veracruz | Stream | Lundblad 1953 in Cook 1980 |
|---|
| Kongsbergia materna | Chiapas, Mexico state, Oaxaca, Veracruz. | Tributary river | Thor 1899 in Cramer 2000 |
|---|
| Submiraxona (Submiraxona) bella | Nayarit | Stream | Cook 1980 |
|---|
| Submiraxona (Submiraxona) lundbladi | Guerrero, Chiapas | River | Cook 1980 |
|---|
| Submiraxona (Submiraxona) stolli | Guerrero | River | Cook 1980 |
|---|
| Miraxona (Miraxona) expansipes | Guerrero | River | Cook 1980 |
|---|
| Miraxona (Miraxona) mexicana | Guerrero | River | Cook 1980 |
|---|
| Miraxonides (Miraxonidella) similis | Nayarit, Veracruz | River | Cook 1980 |
|---|
| Miraxona (Miraxonides) geronimoi | Nayarit | Stream | Cramer and Cook 1991 |
|---|
| Stygalbiella mexicana | Mexico state | Spring | Cramer 1992 |
|---|
| Neoaxona (?Lamellaxona) mexicana | Nayarit | Stream | Cook 1980 |
|---|
| Woolastookia gretae | Nayarit | River, stream | Viets 1978 in Cook 1980 |
|---|
| Forelia mesoamericana | Chiapas | Lagoon | Otero-Colina 1987b |
|---|
| Feltriidae |
|---|
| Feltria (Tropifeltria) neotropica | Chiapas | Waterfalls | Otero-Colina 1987b |
|---|
| Feltria (Feltriella) anahoffmannae | Mexico state | Mountain spring | Cramer 1986 |
|---|
| Mideopsidae | | | |
|---|
| Mideopsis (Mideopsis) cartesa | Nayarit, Veracruz | Stream | Cook 1980 |
|---|
| Mideopsis (Mideopsides) beta | Chiapas | Gravel deposits of stream | Cook 1980 |
|---|
| Mideopsis (Mideopsis) magna | Veracruz, Morelos | River | Cook 1980 |
|---|
| Mideopsis (Neoxystonotus) nobilis | Tabasco | Pond | Cook 1980 |
|---|
| Mideopsis orbicularis | Yucatán | Cenote | Müller 1776 |
|---|
| Mideopsis (Neoxystonotus) mexicana | Mexico state | Helocrene spring | Cook 1980 |
|---|
| Mideopsis (Neoxystonotus) gennada | Chiapas | River | Cook 1980 |
|---|
| Mideopsis (Neoxystonotus) canzolla | Guerrero | Tributary river | Cook 1980 |
|---|
| Krendowskiidae | | | |
|---|
| Krendowskia (Krendowskiella) azteca | Guerrero | Tributary river | Cook 1980 |
|---|
| Krendowskia (Krendowskiella) moyara | Chiapas | River | Cook 1980 |
|---|
| Krendowskia (Krendowskiella) trodroma | Veracruz, Nayarit | Stream | Cook 1980 |
|---|
| Krendowskia (Krendowskiella) vicina | Tabasco | Pond | Cook 1980 |
|---|
| Geayia (Geayia) amacuzaca | Morelos | River | Cook 1980 |
|---|
| Geayia (Geayia) mitchelli | Tabasco, Chiapas | Pond | Cook 1980 |
|---|
| Arenohydracaridae | | | |
|---|
| Arenohydracarus eremitus | * | * | Cook 1974 |
|---|
| Arenohydracarus minimus | Oaxaca, Guerrero | Intertitial waters | Cook 1974 |
|---|
| Chappuisididae |
|---|
| Chappuisides notialis | Mexico state | Spring | Cramer and Smith 1991 |
|---|
| Hungarohydracaridae |
|---|
| Stygarrenurus armoniensis | Mexico state | Interstitial deposits of spring. | Cramer and Cook 1996 |
|---|
| Neoacaridae |
|---|
| Neoacarus adocetus | Mexico state | Spring | Cramer and Smith 1991 |
|---|