Publication Martens (1900): summary

Unio aztecorum var. chapalanus Martens, 1900 = Nephronaias chapalanus

Martens, 1900. Biol. Centr.-Amer., Moll.: 504, pl. 36, fig. 5-5a.
(intro'd as intra-sp. of Unio aztecorum Philippi, 1847)
Type(s): HOLOTYPE (MONOTYPY) ZMB_9106, Lagune de Chapala, Mexico.

Anodonta ciconia ‘Gould’ of Authors = Anodontites trapesialis

‘Gould’ of Authors.
Carpenter, 1857. Maz. Shells: 117.
Fischer & Crosse, 1894. Miss. Sci. Mexique, Rech. Zool. 2(15): 534, pl. 68, 78, figs. 2-2a.
Martens, 1900. Biol. Centr.-Amer., Moll.: 536, pl. 41, fig. 4.
(reference to Anodon ciconia Gould, 1851)

Unio (Lampsilis) discus var. connectens Martens, 1900 = Disconaias disca

‘von dem Busch’ Küster, 1861. Conchyl. Cab. 9(2): 242, pl. 81, fig. 1 [as ‘Unio panacoensis’].
Sowerby, 1867. Conch. Icon. 16: pl. 55, sp. 281 [as ‘Unio mexicanus’].
Martens, 1900. Biol. Centr.-Amer., Moll.: 510.
(intro'd as intra-sp. of Unio discus Lea, 1838)
Type(s): LECTOTYPE ZMB/MOLL.305852 (by Cummings et al., 2025: 177), Rio Panuco, near Tampico.

Unio (Sphenonaias) tehuantepecensis var. copanensis Martens, 1900 = Nephronaias copanensis

Martens, 1900. Biol. Centr.-Amer., Moll.: 502, pl. 36, figs. 6-6a.
(intro'd as intra-sp. of Unio tehuantepecensis Crosse & Fischer, 1894)
Type(s): LECTOTYPE ZMB_220170 (by Cummings et al., 2025: 248), Copan, Honduras.

Cyrena cordata Martens, 1865 = Polymesoda cordata

Martens, 1865. Malak. Blatt. 12: 65.
Martens, 1900. Biol. Centr.-Amer., Moll.: 546, pl. 42, figs. 7-7b.

Sphaerium costaricanum Martens, 1900 = Sphaerium costaricanum

Martens, 1900. Biol. Centr.-Amer., Moll.: 552, pl. 43, figs. 1-1b.

Unio cuprinus Martens, 1900 = Nephronaias calamitarum

‘Lea’ Martens, 1900. Biol. Centr.-Amer., Moll.: 505.
(misidentified reference to Unio cuprinus Lea, 1831)

Anodonta depexa Martens, 1900 = Anodontites tehuantepecensis

Martens, 1900. Biol. Centr.-Amer., Moll.: 538, pl. 41, figs. 3a-c.
Type(s): LECTOTYPE ZMB_108855 (by Cummings et al., 2025: 379), Paso San Antonio, Rio Michatoya, Guatemala.

Unio gabbianus Martens, 1900 = Arotonaias cyrenoides

‘Lea’ Martens, 1900. Biol. Centr.-Amer., Moll.: pl. 39, figs. 5-5b.
(misidentified reference to Unio gabbianus Lea, 1868)

Unio globulosus ‘Dunker, in coll.’ Martens, 1900 = Micronaias arata

‘Dunker, in coll.’ Martens, 1900. Biol. Centr.-Amer., Moll.: 499.
(intro'd as syn of Unio aratus Lea, 1843)
Type(s): HOLOTYPE (MONOTYPY) ZMB/MOLL_305844, Central America.

Unio goascoranensis Martens, 1900 = Nephronaias goascoranensis

Martens, 1900. Biol. Centr.-Amer., Moll.: 501, pl. 38, figs. 10-10a.
(reference to Unio goascoranensis Lea, 1858)

Unio sallei var. grossus Martens, 1900 = Pachynaias spheniopsis

Martens, 1900. Biol. Centr.-Amer., Moll.: 517, pl. 34, figs. 2-2b.
(intro'd as intra-sp. of Unio sallei Crosse & Fischer, 1894)
Type(s): HOLOTYPE (MONOTYPY) ZMB_108850, Rio Salinas, Guatemala.

Unio (Elliptio) guatemalanus Martens, 1900 = Nephronaias goascoranensis

Martens, 1900. Biol. Centr.-Amer., Moll.: 519, pl. 38, figs. 7-8a.
Type(s): LECTOTYPE ZMB_220175 (by Cummings et al., 2025: 260), Rio Michatoya, bei Paso San Antonio, Guatemala.

Anodonta inaequivalvis ‘Lea’ of Authors = Anodontites montezuma

‘Lea’ of Authors.
Simpson, 1900. Proc. U.S. Nat. Mus. 22: 922.
Martens, 1900. Biol. Centr.-Amer., Moll.: 534.
Simpson, 1914. Descr. Cat. Naiades: 1423.
Mansur et al., 2020. [in] Damborenea, Rogers & Thorp, Freshw.Invert. Neotrop. 5: 424.
(error for Anodonta inaequivalva Lea, 1868)

Sphaerium luridum Martens, 1900 = Sphaerium luridum

Martens, 1900. Biol. Centr.-Amer., Moll.: 552, pl. 43, figs. 2-2c.

Unio aztecorum “forma” major Martens, 1900 = Nephronaias aztecorum

Martens, 1900. Biol. Centr.-Amer., Moll.: pl. 37, figs. 3-3b.
(intro'd as intra-sp. of Unio aztecorum Philippi, 1847; homonym of Unio (Anodontes) sirionos var. major d’Orbigny, 1835)
Type(s): HOLOTYPE (MONOTYPY) ZMB/MOLL_220172, Misantlla, Mexico.

Unio (Elliptio) ravistellus var. majusculus Martens, 1900 = Nephronaias ravistella

Martens, 1900. Biol. Centr.-Amer., Moll.: 516.
(intro'd as intra-sp. of Unio ravistellus Morelet, 1849)
Type(s): LECTOTYPE ZMB_38701 (by Cummings et al., 2025: 277), See Yzabal, Guatemala.

Lampsilis (Disconaias) martensi Frierson, 1927 = Nephronaias aztecorum

‘Philippi’ Martens, 1900. Biol. Centr.-Amer., Moll.: pl. 37, figs. 1-1a [as ‘Unio aztecorum’].
Frierson, 1927. Check List N. Amer. Naiades: 83, sp. 364.
Type(s): HOLOTYPE (MONOTYPY) ZMB/MOLL_220183, Misantlla, Mexico.

Psoronaias martensi Frierson, 1927 = Psoronaias crocodilorum

Martens, 1900. Biol. Centr.-Amer., Moll.: 494, pl. 31, figs. 1-2 [as ‘Unio psoricus’].
Frierson, 1927. Check List N. Amer. Naiades: 64, sp. 279.
Type(s): LECTOTYPE [AS TYPE] ZMB/MOLL_39466 (by R.I. Johnson, 1972: 146), N. Guatemala: Rio de las Salinas.

Unio mexicanus ‘Parreyss, in Mus. Berol.’ Martens, 1900 = Nephronaias calamitarum

‘Parreyss, in Mus. Berol.’ Martens, 1900. Biol. Centr.-Amer., Moll.: 505.
(intro'd as syn of Unio persulcatus Lea, 1859)

Unio microdon Martens, 1887 = Mesonaias explicata

Martens, 1887. S.-Ber. Ges. Naturf. Freunde zu Berlin 1887: 107.
Martens, 1900. Biol. Centr.-Amer., Moll.: 504, pl. 35, figs. 1-1c.
Type(s): FIGURED SYNTYPE ZMB_39465, Rio de las Salinas, Guatemala.

Unio calamitarum var. nephritica ‘Crosse & Fischer’ of Authors = Nephronaias calamitarum

‘Crosse & Fischer’ of Authors.
Martens, 1900. Biol. Centr.-Amer., Moll.: 505.
Simpson, 1914. Descr. Cat. Naiades: 281.
(error for Unio calamitarum var. D nephretica Fischer & Crosse, 1894)

Unio panucoensis ‘von dem Busch’ of Authors = Disconaias disca

‘von dem Busch’ of Authors.
Martens, 1900. Biol. Centr.-Amer., Moll.: 510, 651.
Pilsbry, 1910. Proc. Acad. Nat. Sci. 61: 533.
Simpson, 1914. Descr. Cat. Naiades: 603.
Frierson, 1927. Check List N. Amer. Naiades: 82.
(error for Unio panacoensis von dem Busch in Philippi, 1843)

Unio percompressus Martens, 1887 = Psoronaias crocodilorum

Martens, 1887. S.-Ber. Ges. Naturf. Freunde zu Berlin 1887: 107.
Martens, 1900. Biol. Centr.-Amer., Moll.: 496, pl. 32, figs. 1-3.
Type(s): LECTOTYPE ZMB_39463 (by Cummings et al., 2025: 315), Rio de las Salinas, Guatemala.

Eupera pittieri Martens, 1900 = Eupera pittieri

Martens, 1900. Biol. Centr.-Amer., Moll.: 553, pl. 43, figs. 4-4b.

Unio popeii of Authors = Popenaias berezai

of Authors.
Fischer & Crosse, 1894. Miss. Sci. Mexique, Rech. Zool. 2(16): 605 [as ‘Unio (Graphonaias) popei’].
Martens, 1900. Biol. Centr.-Amer., Moll.: 504 [as ‘Unio (Nephronaias) popei’].
Simpson, 1900. Proc. U.S. Nat. Mus. 22: 738 [as ‘Unio (sec. Elliptio)’]. [in part]
Pilsbry, 1910. Proc. Acad. Nat. Sci. 61: 535. [in part]
Ortmann, 1912. Ann. Carnegie Mus. 8: 271 [as ‘Elliptio’].
Simpson, 1914. Descr. Cat. Naiades: 700 [as ‘Unio (sec. Elliptio)’]. [in part]
Frierson, 1927. Check List N. Amer. Naiades: 38 [as ‘Elliptio (Popenaias)’]. [in part]
Haas, 1929. Senckenbergiana 11: 330 [as ‘Elliptio (Popenaias)’]. [in part]
Haas, 1969. Das Tierreich 88: 201 [as ‘Nephronaias (Popenaias)’]. [in part]
Graf & Cummings, 2007. J. Moll. Studies 73: 308 [as ‘Popenaias’]. [in part]
Pfeiffer et al., 2019. Zool. Scripta 48: 504 [as ‘Popenaias’]. [in part]
(misidentified reference to Unio popeii Lea, 1857)

Unio (Simonaias) proclinatus Martens, 1900 = Nephronaias scamnata

Martens, 1900. Biol. Centr.-Amer., Moll.: 508.
Type(s): SYNTYPES ZMB_33793, Taco fl., Cuba.

Unio psoricus Martens, 1900 = Psoronaias crocodilorum

Martens, 1900. Biol. Centr.-Amer., Moll.: 494, pl. 31, figs. 1-2.
(reference to Unio psoricus Morelet, 1851)

Unio (Elliptio) radiatulus Martens, 1900 = Nephronaias goascoranensis

Martens, 1900. Biol. Centr.-Amer., Moll.: 518, pl. 39, figs. 8a-b.
Type(s): LECTOTYPE ZMB_108851 (by Cummings et al., 2025: 260), Rio Michatoya, bei Paso San Antonio, Guatemala.

Anodonta richardsoni Martens, 1900 = Brachyanodon impura

Martens, 1900. Biol. Centr.-Amer., Moll.: 529, pl. 41, figs. 1-2a.
Type(s): SYNTYPES ZMB_108856, Rio Ameca, Prov. Jalisco, Mexico.

Unio rubicundus Martens, 1900 = Psoronaias rubicunda

Martens, 1900. Biol. Centr.-Amer., Moll.: 514, pl. 34, figs. 3-3a.
Type(s): HOLOTYPE (MONOTYPY) ZMB_108853, Coban, Guatemala.

Unio (Crenodonta) stolli Martens, 1900 = Megalonaias nickliniana

Martens, 1900. Biol. Centr.-Amer., Moll.: 492, pl. 29, fig. 2.
Type(s): HOLOTYPE (MONOTYPY) ZMB_39464, Rio de las Salinas, Guatemala.

Unio (Simonaias) cuprinus subventralis Martens, 1900

Martens, 1900. Biol. Centr.-Amer., Moll.: 506, pl. 36, figs. 1-1b.
(intro'd as intra-sp. of Unio cuprinus Lea, 1831)
Type(s): HOLOTYPE (MONOTYPY) ZMB_108852, Tabasco, Mexico.

Unio usumacintae Martens, 1900 = Psoronaias crocodilorum

Crosse & Fischer, 1893. J. de Conch. 40: 294 [as ‘usumasintæ’].
Martens, 1900. Biol. Centr.-Amer., Moll.: 500 [as ‘usumacintæ’].
(new name for Unio usumasintae Crosse & Fischer, 1893)

Anodonta (Pachyanodon) luteola Lea, 1858 = Anodontites tortilis

Anodonta (Pachyanodon) tehuantepecensis Crosse & Fischer, 1894 = Anodontites tehuantepecensis

Anodonta (Patularia) glauca Valenciennes in Humboldt & Bonpland, 1833 = Anodontites trapesialis

Anodonta (Patularia) globosa Lea, 1841 = Pyganodon globosa

Anodonta (Patularia) grijalvae Morelet, 1884 = Pyganodon globosa

Anodonta (Patularia) nopalatensis (Sowerby, 1867) = Pyganodon globosa

Anodonta (Patularia) tabascensis Morelet, 1884 = Pyganodon globosa

Anodonta (Pseudoleila) ciconia (Gould, 1851) = Anodontites trapesialis

+ Anodonta glauca var. B sinaloensis Crosse & Fischer, 1884

+ Anodon ciconia Sowerby, 1870

+ Anodon glaucus ‘Valenciennes’ of Authors

+ Anodon sinuosis Swainson, 1841

Anodonta (s.s.) chalcoensis Crosse & Fischer, 1893 = Brachyanodon impura

+ Anodonta impura Say, 1829

Anodonta (s.s.) coarctata Anton, 1839 = Brachyanodon impura

+ Anodonta chapalensis Crosse & Fischer, 1893

Anodonta (s.s.) exilior Lea, 1871 = Brachyanodon impura

+ Anodon glabrus Sowerby, 1870

+ Anodonta viridana Clessin, 1876

Anodonta (s.s.) henryana Lea, 1857 = Utterbackia imbecillis

Anodonta (s.s.) lurulenta Morelet, 1849 = Anodontites lurulenta + Anodontites cylindracea

+ Anodonta strebelii Lea, 1868

Anodonta (s.s.) montezuma Lea, 1841 = Anodontites montezuma

+ Anodon montezianus Sowerby, 1870

Anodonta (s.s.) richardsoni sp. n. = Brachyanodon impura

Anodonta (Scolianodon) inaequivalva var. granadensis Lea, 1868 = Anodontites montezuma

Anodonta (Scolianodon) inaequivalva var. lenticularis Lea, 1868 = Anodontites montezuma

Anodonta (Scolianodon) inæquivalvis [sic] Lea, 1868 = Anodontites montezuma

+ Anodonta atrovirens Philippi, 1849

+ Anodonta inaequalis Tate, 1870

Eupera maculata (Morelet, 1859) = Eupera singleyi

Eupera meridionalis (Prime, 1861)

Eupera pittieri sp. n.

Mycetopus subsinuatus Sowerby, 1868 = Mycetopoda subsinuata

Mycetopus weddelli Húpe, 1857 = Mycetopoda siliquosa

Neocorbicula convexa (Deshayes, 1854)

+ Corbicula ventricosa Prime, 1870

Pisidium abditum (Haldeman, 1841) = Euglesa casertana

+ Pisidium retusum Prime, 1860

Pisidium compressum Prime, 1851 = Euglesa compressa

Pisidium singleyi Sterki, 1898 = Pisidium punctatum

Polymesoda (Cyrenocapsa) maritima (C.B. Adams, 1852) = Polymesoda inflata

Polymesoda (Cyrenocapsa) salmacida (Morelet, 1851) = Polymesoda salmacida

Polymesoda (Egeta) cumingi (Deshayes, 1854)

Polymesoda (Egeta) inflata (Philippi, 1851) = Polymesoda inflata

Polymesoda (Egeta) inflata var. cordiformis (Récluz, 1853) = Polymesoda inflata

+ Cyrena recluzii Prime, 1865

+ Cyrena maritima Sowerby, 1878

Polymesoda (Egeta) inflata var. panamensis (Prime, 1860) = Polymesoda inflata

+ Cyrena (Anomala) inflata Deshayes, 1854

Polymesoda (Egeta) mexicana (Broderip & Sowerby, 1829) = Polymesoda mexicana

Polymesoda (s.s.) acuta (Prime, 1861) = Polymesoda arctata

Polymesoda (s.s.) angulata (Deshayes, 1854) = Polymesoda inflata

+ Cyrena tumida Prime, 1865

Polymesoda (s.s.) cordata (v. Mart., 1865) = Polymesoda cordata

Polymesoda (s.s.) exquisita (Prime, 1867) = Polymesoda boliviana

Polymesoda (s.s.) germana (Prime, 1867) = Polymesoda arctata

Polymesoda (s.s.) olivacea (Carpenter, 1857) = Polymesoda altilis

+ Cyrena fontainei Philippi, 1851

Polymesoda (s.s.) placens (Hanley, 1844) = Polymesoda fontainei

Polymesoda (s.s.) pullastra (Mörch, 1860) = Polymesoda notabilis

Polymesoda (s.s.) radiata (Hanley, 1844) = Polymesoda arctata

Polymesoda (s.s.) solida (Philippi, 1846) = Polymesoda solida

+ Cyrena nicaraguana Prime, 1870

Polymesoda (s.s.) sordida (Hanley, 1844)

Polymesoda (s.s.) triangula (Philippi, 1849)

Sphærium costaricanum sp. n. = Sphaerium costaricanum

Sphærium luridum sp. n. = Sphaerium luridum

Sphærium martensi (Pilsbry, 1899) = Sphaerium martensi

Sphærium subtransversum (Prime, 1860) = Sphaerium subtransversum

Sphærium triangulare (Say, 1829) = Sphaerium triangulare

Unio (Arotonaias) aratus Lea = Micronaias arata

+ Unio globulosus ‘Dunker, in coll.’ Martens, 1900

Unio (Arotonaias) caldwellii Lea, 1858 = Nephronaias caldwellii

+ Unio averyi Lea, 1859

Unio (Arotonaias) cyrenoides Philippi, 1847 = Arotonaias cyrenoides

Unio (Arotonaias) gabbianus Lea, 1868 = Arotonaias gabbiana

+ Unio nicaraguensis Lea, 1868

Unio (Arotonaias) granadensis Lea, 1868 = Micronaias granadensis

Unio (Arotonaias) imbricatus Mörch, 1861 = Arotonaias encarpa

+ Unio encarpus Lea, 1868

Unio (Arotonaias) newcombianus Lea, 1856 = Arotonaias cyrenoides

+ Unio sagrinatus Sowerby, 1868

Unio (Arotonaias) reticulatus Simpson, 1900 = Arotonaias reticulata

Unio (Crenodonta) digitatus Morelet, 1851 = Megalonaias nickliniana + Megalonaias nervosa

+ Unio eightsii Lea, 1860

Unio (Crenodonta) nicklinianus Lea, 1834 = Megalonaias nickliniana

Unio (Crenodonta) stolli n.n. = Megalonaias nickliniana

+ Unio nicklianus Küster, 1861

Unio (Elliptio) aeruginosus Morelet, 1849 = Nephronaias aeruginosa

Unio (Elliptio) guatemalanus sp. n. = Nephronaias goascoranensis

Unio (Elliptio) medellinus Lea, 1838 = Actinonaias medellina

+ Unio purpuriatus Say, 1831

+ Unio veracruzensis Lea, 1868

Unio (Elliptio) mexicanus Philippi, 1847

Unio (Elliptio) opacatus Crosse & Fischer, 1893 = Sphenonaias opacata

Unio (Elliptio) pliciferus Lea, 1838 = Sphenonaias plexus

+ Unio plexus Conrad, 1838

Unio (Elliptio) pliciferus var. carbonarius Lea, 1838 = Sphenonaias plexus

Unio (Elliptio) pliciferus var. minor Crosse & Fischer, 1894 = Sphenonaias plexus

Unio (Elliptio) radiatulus von Martens, 1900 = Nephronaias goascoranensis

Unio (Elliptio) ravistellus Morelet, 1849 = Nephronaias ravistella

Unio (Elliptio) ravistellus var. majusculus von Martens, 1900 = Nephronaias ravistella

Unio (Elliptio) ravistellus var. veraepacis Tristram, 1863 = Nephronaias ravistella

+ Unio vellicatus Reeve, 1865

Unio (Elliptio) rowelli Lea, 1859 = Nephronaias rowellii

Unio (Elliptio) rubicundus sp. n. = Psoronaias rubicunda

Unio (Elliptio) sallei Crosse & Fischer, 1893 = Nephronaias sallei

Unio (Elliptio) sallei var. grossus von Martens, 1900 = Pachynaias spheniopsis

Unio (Lampsilis) alienigenus Crosse & Fischer, 1893 = Mesonaias umbrosa

Unio (Lampsilis) berlandieri Lea, 1857 = Cyrtonaias berlandierii

Unio (Lampsilis) cognatus Lea, 1860 = Truncilla cognata

Unio (Lampsilis) computatus Crosse & Fischer, 1893 = Actinonaias sapotalensis

Unio (Lampsilis) discus Lea, 1838 = Disconaias disca + Elliptio crassidens

+ Unio discus Sowerby, 1868

Unio (Lampsilis) discus var. connectens n. = Disconaias disca

+ Unio panacoensis Küster, 1861

+ Unio mexicanus Sowerby, 1867

Unio (Lampsilis) discus var. panucoensis [sic] von dem Busch in Philippi, 1843 = Disconaias disca

+ Unio lapidosus ‘Villa in sched.’ Kobelt, 1893

Unio (Lampsilis) rovirosai Pilsbry, 1900 = Mesonaias explicata

Unio (Lampsilis) sapotalensis Lea, 1841 = Actinonaias sapotalensis

Unio (Lampsilis) tampicoensis Lea, 1838 = Mesonaias tampicoensis

Unio (Lampsilis) tampicoensis var. tecomatensis Lea, 1841 = Mesonaias tampicoensis

+ Unio tampicoensis Küster, 1862

Unio (Lampsilis) tampicoensis var. umbrosus Lea, 1856 = Mesonaias umbrosa

Unio (Metaptera) delphinulus Morelet, 1849 = Delphinonaias largillierti

Unio (Metaptera) paludosus Morelet, 1849 = Delphinonaias largillierti

+ Unio largillierti Philippi, 1847

Unio (Metaptera) paludosus var. planivalvis Morelet, 1851 = Delphinonaias largillierti

Unio (Metaptera) scutulatus Morelet, 1849 = Delphinonaias scutulata

+ Unio scutulatus var. B obliterata Fischer & Crosse, 1894

+ Unio scutulatus var. G secabilis Fischer & Crosse, 1894

Unio (Nephronaias) aztecorum Philippi, 1847 = Nephronaias aztecorum + Unio mancus

+ Unio impressus Menke, 1830

+ Unio emarginatus Lea, 1834

+ Unio plicatulus Küster, 1856

+ Unio aztecorum “forma” major Martens, 1900

Unio (Nephronaias) aztecorum var. chapalanus von Martens, 1900 = Nephronaias chapalanus

Unio (Nephronaias) aztecorum var. soledadensis Crosse & Fischer, 1893 = Nephronaias aztecorum

Unio (Nephronaias) aztecorum var. strebeli Lea, 1866 = Nephronaias aztecorum

Unio (Nephronaias) microdon von Martens, 1887 = Mesonaias explicata

Unio (Nephronaias) poeyanus Lea, 1857 = Nephritica poeyana

Unio (Nephronaias) popei Lea, 1857 = Popenaias popeii

Unio (Pleurobema) couchianus Lea, 1860 = Quadrula couchiana

Unio (Pleurobema) spheniopsis Morelet, 1849 = Pachynaias spheniopsis

Unio (Pleurobema) usumacintæ Crosse & Fischer, 1892 = Psoronaias crocodilorum

+ Unio usumasintae Crosse & Fischer, 1893

Unio (Psoronaias) corium Reeve, 1864 = Psoronaias crocodilorum

Unio (Psoronaias) crocodilorum Morelet, 1849 = Psoronaias crocodilorum

+ Unio crocodilorum var. B semipustulata Fischer & Crosse, 1894

+ Unio crocodilorum var. G praestricta Fischer & Crosse, 1894

+ Unio pliciferus Reeve, 1864

Unio (Psoronaias) crocodilorum var. rudis Simpson, 1900 = Psoronaias crocodilorum

Unio (Psoronaias) morini Morelet, 1851 = Psoronaias crocodilorum

Unio (Psoronaias) ostreatus Morelet, 1849 = Psoronaias crocodilorum

Unio (Psoronaias) percompressus von Martens, 1887 = Psoronaias crocodilorum

Unio (Psoronaias) psoricus Morelet, 1851 = Psoronaias crocodilorum

Unio (Psoronaias) psoricus var. pigerrimus Crosse & Fischer, 1893 = Psoronaias crocodilorum

Unio (Psoronaias) semigranosus von dem Busch in Philippi, 1845 = Psoronaias semigranosa

Unio (Psoronaias) semigranosus var. distinctus Crosse & Fischer, 1893 = Psoronaias distincta

Unio (Psoronaias) semigranosus var. testudineus Morelet, 1849 = Psoronaias crocodilorum

+ Unio semigranosus Reeve, 1864

Unio (Simonaias) callosus Lea, 1841 = Ortmanniana ligamentina

Unio (Simonaias) championi sp. n. = Nephronaias goascoranensis

Unio (Simonaias) cuprinus Lea, 1831 = Popenaias metallica + Nephronaias calamitarum

+ Unio calamitarum Morelet, 1849

Unio (Simonaias) cuprinus subventralis von Martens, 1900

Unio (Simonaias) cuprinus var. arcuans Crosse & Fischer, 1894 = Nephronaias calamitarum

+ Unio calamitarum Sowerby, 1868

Unio (Simonaias) cuprinus var. coloratus Charpentier in Küster, 1856

Unio (Simonaias) cuprinus var. nephritica [sic] Crosse & Fischer, 1894 = Nephronaias calamitarum + Popenaias metallica

+ Unio cuprinus Sowerby, 1868

Unio (Simonaias) cuprinus var. persulcatus Lea, 1859 = Nephronaias calamitarum + Popenaias metallica

+ Unio metallicus Say, 1831

+ Unio mexicanus ‘Parreyss, in Mus. Berol.’ Martens, 1900

Unio (Simonaias) cuprinus var. tabascoensis Charpentier in Küster, 1856 = Nephronaias calamitarum

+ Unio calamitarum var. B prolongata Fischer & Crosse, 1894

Unio (Simonaias) dysoni Lea, 1859 = Nephronaias dysonii

+ Unio rugulosus Küster, 1856

Unio (Simonaias) hjalmarsoni Dunker, 1858 = Nephronaias hjalmarsoni

Unio (Simonaias) macnieli Lea, 1869 = Nephronaias macnielii

Unio (Simonaias) nuculinus Philippi, 1848 = Micronaias arata

Unio (Simonaias) proclinatus sp. n. = Nephronaias scamnata

+ Unio scamnatus Dunker, 1858

+ Unio gundlachi Sowerby, 1866

Unio (Simonaias) scamnatus Morelet, 1849 = Nephronaias scamnata + Actinonaias gundlachi

+ Unio gundlachi Dunker, 1858

Unio (Simonaias) yzabalensis Crosse & Fischer, 1892 = Nephronaias yzabalensis

Unio (Sphenonaias) acutirostris Lea, 1866 = Diplodon parallelopipedon

+ Unio sphenorhynchus Crosse & Fischer, 1894

Unio (Sphenonaias) goascoranensis Lea, 1858 = Nephronaias goascoranensis

Unio (Sphenonaias) liebmanni Philippi, 1847 = Sphenonaias liebmanni

Unio (Sphenonaias) tehuantepecensis Crosse & Fischer, 1893 = Nephronaias tehuantepecensis

Unio (Sphenonaias) tehuantepecensis var. copanensis n. = Nephronaias copanensis

Unio (Uniomerus) explicatus Morelet, 1849 = Mesonaias explicata

+ Unio explicatus Fischer & Crosse, 1894

+ Unio testudineus Reeve, 1865

Unio (Uniomerus) manubius Gould, 1855 = Uniomerus tetralasmus