Alasmidonta costata Rafinesque, 1820
Rafinesque, 1820. Ann. Gén. Sci. Phys. 5 (13): 318, pl. 82, figs. 15-16.
Rafinesque, 1864. [in] Binney & Tryon, reprint: 60.

Amblema antrosa Rafinesque, 1820
Rafinesque, 1820. Ann. Gén. Sci. Phys. 5 (13): 322.
Rafinesque, 1864. [in] Binney & Tryon, reprint: 64.
(new name for Obovaria pachostea Rafinesque, 1820)

Amblema costata Rafinesque, 1820
Rafinesque, 1820. Ann. Gén. Sci. Phys. 5 (13): 315, pl. 82, figs. 13-14 [also as ‘Unio costata’].
Rafinesque, 1864. [in] Binney & Tryon, reprint: 58.
Type(s): LECTOTYPE ANSP_20246, small creeks, Kentucky.

Amblema gibbosa Rafinesque, 1820
Rafinesque, 1818. Amer. Mon. Mag. 3: 355 [as ‘Potamilus gibbosus’]. [nomen nudum]
Rafinesque, 1820. Ann. Gén. Sci. Phys. 5 (13): 315 [also as ‘Unio gibbosa’].
Rafinesque, 1864. [in] Binney & Tryon, reprint: 23, 58.
Type(s): LECTOTYPE ANSP_20232, Riv. Ohio.

Amblema olivaria Rafinesque, 1820
Rafinesque, 1820. Ann. Gén. Sci. Phys. 5 (13): 314 [also as ‘U. olivaria’].
Rafinesque, 1864. [in] Binney & Tryon, reprint: 57.

Amblema torulosa Rafinesque, 1820
Rafinesque, 1820. Ann. Gén. Sci. Phys. 5 (13): 314, pl. 82, fig. 11-12 [also as ‘Unio torulosa’].
Rafinesque, 1864. [in] Binney & Tryon, reprint: 57.
Type(s): HOLOTYPE ANSP_20218, [no locality available - North America].

Amblema gibbosa var. difformis Rafinesque, 1820
Rafinesque, 1820. Ann. Gén. Sci. Phys. 5 (13): 315.
Rafinesque, 1864. [in] Binney & Tryon, reprint: 58.
(intro'd as intra-sp. of Amblema gibbosa Rafinesque, 1820)

Amblema gibbosa var. olivacea Rafinesque, 1820
Rafinesque, 1820. Ann. Gén. Sci. Phys. 5 (13): 315.
Rafinesque, 1864. [in] Binney & Tryon, reprint: 58.
(intro'd as intra-sp. of Amblema gibbosa Rafinesque, 1820)

Amblema gibbosa var. radiata Rafinesque, 1820
Rafinesque, 1820. Ann. Gén. Sci. Phys. 5 (13): 315.
Rafinesque, 1864. [in] Binney & Tryon, reprint: 58.
(intro'd as intra-sp. of Amblema gibbosa Rafinesque, 1820)

Amblema olivaria var. dilatata Rafinesque, 1820
Rafinesque, 1820. Ann. Gén. Sci. Phys. 5 (13): 314.
Rafinesque, 1864. [in] Binney & Tryon, reprint: 57.
(intro'd as intra-sp. of Amblema olivaria Rafinesque, 1820)

Amblema olivaria var. fasciolaris Rafinesque, 1820
Rafinesque, 1820. Ann. Gén. Sci. Phys. 5 (13): 314.
Rafinesque, 1864. [in] Binney & Tryon, reprint: 57.
(intro'd as intra-sp. of Amblema olivaria Rafinesque, 1820)

Amblema torulosa var. angulata Rafinesque, 1820
Rafinesque, 1820. Ann. Gén. Sci. Phys. 5 (13): 315.
Rafinesque, 1864. [in] Binney & Tryon, reprint: 57.
(intro'd as intra-sp. of Amblema torulosa Rafinesque, 1820)

Anodonta mutabilis Rafinesque, 1820
Rafinesque, 1820. Ann. Gén. Sci. Phys. 5 (13): 317.
(intro'd as syn of Anodonta (Lastena) ohiensis Rafinesque, 1820)

Anodonta (Lastena) lata Rafinesque, 1820
Rafinesque, 1820. Ann. Gén. Sci. Phys. 5 (13): 317, pl. 82, figs. 17-18 [also as ‘Lastena lata’].
Rafinesque, 1864. [in] Binney & Tryon, reprint: 59.
Type(s): TYPE ANSP_20227, Kentucky River.

Anodonta (Lastena) ohiensis Rafinesque, 1820
Rafinesque, 1820. Ann. Gén. Sci. Phys. 5 (13): 316 [also as ‘Lastena ohiensis’].
Rafinesque, 1864. [in] Binney & Tryon, reprint: 59.

Anodonta (Lastena) ohiensis var. nigrescens Rafinesque, 1820
Rafinesque, 1820. Ann. Gén. Sci. Phys. 5 (13): 317.
Rafinesque, 1864. [in] Binney & Tryon, reprint: 59.
(intro'd as intra-sp. of Anodonta (Lastena) ohiensis Rafinesque, 1820)

Anodonta (Lastena) ohiensis var. radiata Rafinesque, 1820
Rafinesque, 1820. Ann. Gén. Sci. Phys. 5 (13): 317.
Rafinesque, 1864. [in] Binney & Tryon, reprint: 59.
(intro'd as intra-sp. of Anodonta (Lastena) ohiensis Rafinesque, 1820)

Anodonta (Lastena) ohiensis var. violacina Rafinesque, 1820
Rafinesque, 1818. Amer. Mon. Mag. 3: 355 [as ‘Potamilus violacinus’]. [nomen nudum]
Rafinesque, 1820. Ann. Gén. Sci. Phys. 5 (13): 317.
Rafinesque, 1864. [in] Binney & Tryon, reprint: 22, 59.
(intro'd as intra-sp. of Anodonta (Lastena) ohiensis Rafinesque, 1820)

Anodonta (Lastena) ohiensis var. viridis Rafinesque, 1820
Rafinesque, 1820. Ann. Gén. Sci. Phys. 5 (13): 317.
Rafinesque, 1864. [in] Binney & Tryon, reprint: 59.
(intro'd as intra-sp. of Anodonta (Lastena) ohiensis Rafinesque, 1820)

Anodonta (s.s.) atra Rafinesque, 1820
Rafinesque, 1820. Ann. Gén. Sci. Phys. 5 (13): 316.
Rafinesque, 1864. [in] Binney & Tryon, reprint: 59.

Anodonta (s.s.) cuneata Rafinesque, 1820
Rafinesque, 1820. Ann. Gén. Sci. Phys. 5 (13): 316.
Rafinesque, 1864. [in] Binney & Tryon, reprint: 59.

Cyclas (Amesoda) lasmampsis Rafinesque, 1820
Rafinesque, 1820. Ann. Gén. Sci. Phys. 5 (13): 319, pl. 82, figs. 19-21 [also as ‘Ameroda [sic] lasmampsis’].

Cyclas (Corbicula) hammalis Rafinesque, 1820
Rafinesque, 1820. Ann. Gén. Sci. Phys. 5 (13): 319. [nomen nudum]

Cyclas (Phymesoda) equalis Rafinesque, 1820
Rafinesque, 1820. Ann. Gén. Sci. Phys. 5 (13): 319 [also as ‘Phymeroda [sic] equalis’].

Lampsilis cardium Rafinesque, 1820
Rafinesque, 1820. Ann. Gén. Sci. Phys. 5 (13): 298, pl. 80, figs. 16-19 [also as ‘Unio cardium’].
Rafinesque, 1864. [in] Binney & Tryon, reprint: 43.
Type(s): LECTOTYPE ANSP_20210 (by Johnson & Baker, 1973: 150), [no locality available - North America].

Lampsilis fasciola Rafinesque, 1820
Rafinesque, 1820. Ann. Gén. Sci. Phys. 5 (13): 299 [also as ‘Unio fasciola’].
Rafinesque, 1864. [in] Binney & Tryon, reprint: 44.

Lampsilis pallida Rafinesque, 1820
Rafinesque, 1819. Jour. Phys. Chim. Hist. Nat. 88: 426 [as ‘U. (Proptera) pallida’]. [nomen nudum]
Rafinesque, 1820. Ann. Gén. Sci. Phys. 5 (13): 299, footnote.
Rafinesque, 1864. [in] Binney & Tryon, reprint: 29, 44.

Lampsilis rosea Rafinesque, 1820
Rafinesque, 1820. Ann. Gén. Sci. Phys. 5 (13): 299, footnote.
Rafinesque, 1864. [in] Binney & Tryon, reprint: 44.

Metaptera megaptera Rafinesque, 1820
Rafinesque, 1820. Ann. Gén. Sci. Phys. 5 (13): 300, pl. 80, figs. 20-22 [also as ‘Unio megaptera’].
Chenu, 1845. Biblio. Conch. 3: 15, pl. 1, figs. 20-22.
Rafinesque, 1864. [in] Binney & Tryon, reprint: 44.
Type(s): LECTOTYPE ANSP_20211, Ohio River.

Mytilus recurvus Rafinesque, 1820
Rafinesque, 1820. Ann. Gén. Sci. Phys. 5 (13): 320.

Obliquaria rubra Rafinesque, 1820
Rafinesque, 1820. Ann. Gén. Sci. Phys. 5 (13): 314 [also as ‘U. rubra’].
Rafinesque, 1864. [in] Binney & Tryon, reprint: 57.
Type(s): LECTOTYPE ANSP_20237, [no locality available - North America].

Obliquaria (Ellipsaria) atroviolacea Rafinesque, 1820
Rafinesque, 1820. Ann. Gén. Sci. Phys. 5 (13): 321.
Rafinesque, 1864. [in] Binney & Tryon, reprint: 63.

Obliquaria (Ellipsaria) attenuata Rafinesque, 1820
Rafinesque, 1820. Ann. Gén. Sci. Phys. 5 (13): 305, footnote.
Rafinesque, 1864. [in] Binney & Tryon, reprint: 49.

Obliquaria (Ellipsaria) cuprea Rafinesque, 1820
Rafinesque, 1820. Ann. Gén. Sci. Phys. 5 (13): 304, pl. 81, figs. 8-9 [also as ‘U. cuprea’].
Rafinesque, 1864. [in] Binney & Tryon, reprint: 48.

Obliquaria (Ellipsaria) ellipsaria Rafinesque, 1820
Rafinesque, 1820. Ann. Gén. Sci. Phys. 5 (13): 303 [also as ‘U. ellipsaria’].
Rafinesque, 1864. [in] Binney & Tryon, reprint: 48.

Obliquaria (Ellipsaria) fasciolaris Rafinesque, 1820
Rafinesque, 1818. Amer. Mon. Mag. 3: 355 [as ‘Potamilus fasciolaris’]. [nomen nudum]
Rafinesque, 1819. Jour. Phys. Chim. Hist. Nat. 88: 426 [as ‘U. (Plagiola) fasciolaris’]. [nomen nudum]
Rafinesque, 1820. Ann. Gén. Sci. Phys. 5 (13): 303 [also as ‘U. fasciolaris’].
Rafinesque, 1864. [in] Binney & Tryon, reprint: 22, 29, 48.
Type(s): LECTOTYPE ANSP_20253, Kentucky River.

Obliquaria (Ellipsaria) sinuata Rafinesque, 1820
Rafinesque, 1820. Ann. Gén. Sci. Phys. 5 (13): 321 [also as ‘Unio sinuata’].
Rafinesque, 1864. [in] Binney & Tryon, reprint: 63.
(renamed Unio cultratus Rafinesque, 1831)
Type(s): LECTOTYPE ANSP_20252, Kentucky River.

Obliquaria (Ellipsaria) verrucosa Rafinesque, 1820
Rafinesque, 1818. Amer. Mon. Mag. 3: 355 [as ‘Potamilus verrucosus’]. [nomen nudum]
Rafinesque, 1819. Jour. Phys. Chim. Hist. Nat. 88: 426 [as ‘U. (Plagiola) verrucosa’]. [nomen nudum]
Rafinesque, 1820. Ann. Gén. Sci. Phys. 5 (13): 304, pl. 81, figs. 10-12 [also as ‘U. verrucosa’].
Rafinesque, 1864. [in] Binney & Tryon, reprint: 23, 29, 48.
Type(s): LECTOTYPE ANSP_20235, Ohio River.

Obliquaria (Ellipsaria) ellipsaria var. fusca Rafinesque, 1820
Rafinesque, 1820. Ann. Gén. Sci. Phys. 5 (13): 303.
Rafinesque, 1864. [in] Binney & Tryon, reprint: 48.
(intro'd as intra-sp. of Obliquaria (Ellipsaria) ellipsaria Rafinesque, 1820)

Obliquaria (Ellipsaria) fasciolaris var. fuscata Rafinesque, 1820
Rafinesque, 1820. Ann. Gén. Sci. Phys. 5 (13): 304.
Rafinesque, 1864. [in] Binney & Tryon, reprint: 48.
(intro'd as intra-sp. of Obliquaria (Ellipsaria) fasciolaris Rafinesque, 1820)

Obliquaria (Ellipsaria) fasciolaris var. interrupta Rafinesque, 1820
Rafinesque, 1820. Ann. Gén. Sci. Phys. 5 (13): 303.
Rafinesque, 1864. [in] Binney & Tryon, reprint: 48.
(homonym of Obliquaria (Plagiola) interrupta Rafinesque, 1820; intro'd as intra-sp. of Obliquaria (Ellipsaria) fasciolaris Rafinesque, 1820)

Obliquaria (Ellipsaria) fasciolaris var. longa Rafinesque, 1820
Rafinesque, 1820. Ann. Gén. Sci. Phys. 5 (13): 304.
Rafinesque, 1864. [in] Binney & Tryon, reprint: 48.
(intro'd as intra-sp. of Obliquaria (Ellipsaria) fasciolaris Rafinesque, 1820)

Obliquaria (Ellipsaria) fasciolaris var. obliterata Rafinesque, 1820
Rafinesque, 1820. Ann. Gén. Sci. Phys. 5 (13): 304.
Rafinesque, 1864. [in] Binney & Tryon, reprint: 48.
(intro'd as intra-sp. of Obliquaria (Ellipsaria) fasciolaris Rafinesque, 1820)

Obliquaria (Plagiola) cliffordiana Rafinesque, 1820
Rafinesque, 1820. Ann. Gén. Sci. Phys. 5 (13): 321 [also as ‘Unio cliffordiana’].
Rafinesque, 1864. [in] Binney & Tryon, reprint: 63.

Obliquaria (Plagiola) decorticata Rafinesque, 1820
Rafinesque, 1820. Ann. Gén. Sci. Phys. 5 (13): 302 [also as ‘U. decorticata’].
Rafinesque, 1864. [in] Binney & Tryon, reprint: 46.

Obliquaria (Plagiola) depressa Rafinesque, 1820
Rafinesque, 1819. Jour. Phys. Chim. Hist. Nat. 88: 426 [as ‘Unio (Plagiola) depressa’]. [nomen nudum]
Rafinesque, 1820. Ann. Gén. Sci. Phys. 5 (13): 302, pl. 81, figs. 5-7 [also as ‘U. depressa’].
Rafinesque, 1864. [in] Binney & Tryon, reprint: 29, 47.
(renamed Unio compressus Rafinesque, 1831)
Type(s): NEOTYPE ANSP_20207, Ohio River.

Obliquaria (Plagiola) interrupta Rafinesque, 1820
Rafinesque, 1820. Ann. Gén. Sci. Phys. 5 (13): 302 [also as ‘U. do’].
Rafinesque, 1864. [in] Binney & Tryon, reprint: 47.
Type(s): LECTOTYPE ANSP_20257, Ohio River.

Obliquaria (Plagiola) lineolata Rafinesque, 1820
Rafinesque, 1820. Ann. Gén. Sci. Phys. 5 (13): 303 [also as ‘U. linéolata’].
Rafinesque, 1864. [in] Binney & Tryon, reprint: 47.
Type(s): LECTOTYPE ANSP_20242, Ohio River.

Obliquaria (Quadrula) bullata Rafinesque, 1820
Rafinesque, 1820. Ann. Gén. Sci. Phys. 5 (13): 307 [also as ‘U. bullata’].
Rafinesque, 1864. [in] Binney & Tryon, reprint: 51.
(homonym of Obliquaria (Quadrula) flexuosa var. bullata Rafinesque, 1820)
Type(s): NEOTYPE ANSP_20250, Kentucky River.

Obliquaria (Quadrula) cyphya Rafinesque, 1820
Rafinesque, 1820. Ann. Gén. Sci. Phys. 5 (13): 305 [also as ‘U. cyphia’].
Rafinesque, 1864. [in] Binney & Tryon, reprint: 49.
(correct name for Unio cyphia Rafinesque, 1820)
Type(s): LECTOTYPE ANSP_20239, River Ohio.

Obliquaria (Quadrula) flava Rafinesque, 1820
Rafinesque, 1819. Jour. Phys. Chim. Hist. Nat. 88: 426 [as ‘U. (Plagiola) flava’]. [nomen nudum]
Rafinesque, 1820. Ann. Gén. Sci. Phys. 5 (13): 305, pl. 81, figs. 13-14 [also as ‘U. flava’].
Rafinesque, 1864. [in] Binney & Tryon, reprint: 29, 49.
Type(s): LECTOTYPE ANSP_20230, small creeks in Kentucky.

Obliquaria (Quadrula) flexuosa Rafinesque, 1820
Rafinesque, 1820. Ann. Gén. Sci. Phys. 5 (13): 306 [also as ‘Unio flexuosa’].
Rafinesque, 1864. [in] Binney & Tryon, reprint: 50.
Type(s): LECTOTYPE ANSP_20249, Kentucky River.

Obliquaria (Quadrula) metanevra Rafinesque, 1820
Rafinesque, 1820. Ann. Gén. Sci. Phys. 5 (13): 305, pl. 81, figs. 15-16 [also as ‘U. metanevra’].
Rafinesque, 1864. [in] Binney & Tryon, reprint: 50.
Type(s): NEOTYPE ANSP_20238, Ohio River.

Obliquaria (Quadrula) nodulata Rafinesque, 1820
Rafinesque, 1820. Ann. Gén. Sci. Phys. 5 (13): 307, pl. 81, figs. 17-18 [also as ‘Unio nodulata’].
Rafinesque, 1864. [in] Binney & Tryon, reprint: 51.
Type(s): LECTOTYPE ANSP_20225, Kentucky River.

Obliquaria (Quadrula) quadrula Rafinesque, 1820
Rafinesque, 1820. Ann. Gén. Sci. Phys. 5 (13): 307 [also as ‘Unio quadrula’].
Rafinesque, 1864. [in] Binney & Tryon, reprint: 51.
Type(s): NEOTYPE ANSP_20224, Salt River.

Obliquaria (Quadrula) reflexa Rafinesque, 1820
Rafinesque, 1820. Ann. Gén. Sci. Phys. 5 (13): 306 [also as ‘U. reflexa’].
Rafinesque, 1864. [in] Binney & Tryon, reprint: 50.
Type(s): LECTOTYPE ANSP_20206, Letart Falls.

Obliquaria (Quadrula) retusa Rafinesque, 1820
Rafinesque, 1818. Amer. Mon. Mag. 3: 355 [as ‘Potamilus retusus’]. [nomen nudum]
Rafinesque, 1819. Jour. Phys. Chim. Hist. Nat. 88: 427 [as ‘U. (Obovaria) retusa’]. [nomen nudum]
Rafinesque, 1820. Ann. Gén. Sci. Phys. 5 (13): 306, pl. 81, figs. 19-20 [also as ‘Unio retusa’].
Rafinesque, 1864. [in] Binney & Tryon, reprint: 22, 29, 50.
(renamed Unio premorsus Rafinesque, 1831)
Type(s): NEOTYPE ANSP_20220, Green River.

Obliquaria (Quadrula) flexuosa var. bullata Rafinesque, 1820
Rafinesque, 1820. Ann. Gén. Sci. Phys. 5 (13): 307.
Rafinesque, 1864. [in] Binney & Tryon, reprint: 51.
(intro'd as intra-sp. of Obliquaria (Quadrula) flexuosa Rafinesque, 1820)

Obliquaria (Rotundaria) pusilla Rafinesque, 1820
Rafinesque, 1818. Amer. Mon. Mag. 3: 355 [as ‘Potamilus pusillus’]. [nomen nudum]
Rafinesque, 1820. Ann. Gén. Sci. Phys. 5 (13): 308 [also as ‘Unio pusilla’].
Rafinesque, 1864. [in] Binney & Tryon, reprint: 23, 52.

Obliquaria (Rotundaria) subrotunda Rafinesque, 1820
Rafinesque, 1818. Amer. Mon. Mag. 3: 355 [as ‘Potamilus subrotundus’]. [nomen nudum]
Rafinesque, 1819. Jour. Phys. Chim. Hist. Nat. 88: 426 [as ‘U. (Obovaria) subrotunda’]. [nomen nudum]
Rafinesque, 1820. Ann. Gén. Sci. Phys. 5 (13): 308, pl. 81, figs. 21-23 [also as ‘U. subrotunda’].
Rafinesque, 1864. [in] Binney & Tryon, reprint: 23, 29, 52.
Type(s): NEOTYPE ANSP_20254, Kentucky River.

Obliquaria (Rotundaria) tuberculata Rafinesque, 1820
Rafinesque, 1818. Amer. Mon. Mag. 3: 355 [as ‘Potamilus tubercularis’]. [nomen nudum]
Rafinesque, 1820. Ann. Gén. Sci. Phys. 5 (13): 308 [also as ‘U. tuberculata’].
Rafinesque, 1864. [in] Binney & Tryon, reprint: 23, 52.
(correct name for Potamilus tubercularis Rafinesque, 1818)
Type(s): LECTOTYPE ANSP_20215, Ohio River.

Obliquaria (Rotundaria) subrotunda var. maculata Rafinesque, 1820
Rafinesque, 1820. Ann. Gén. Sci. Phys. 5 (13): 308.
Rafinesque, 1864. [in] Binney & Tryon, reprint: 52.
(intro'd as intra-sp. of Obliquaria (Rotundaria) subrotunda Rafinesque, 1820)

Obliquaria (Scalenaria) obliquata Rafinesque, 1820
Rafinesque, 1818. Amer. Mon. Mag. 3: 355 [as ‘Potamilus obliquatus’]. [nomen nudum]
Rafinesque, 1819. Jour. Phys. Chim. Hist. Nat. 88: 426 [as ‘U. (Plagiola) obliquatus’]. [nomen nudum]
Rafinesque, 1820. Ann. Gén. Sci. Phys. 5 (13): 309 [also as ‘U. obliquata’].
Rafinesque, 1864. [in] Binney & Tryon, reprint: 22, 29, 53.
Type(s): LECTOTYPE ANSP_20226, Kentucky River.

Obliquaria (Scalenaria) scalenia Rafinesque, 1820
Rafinesque, 1820. Ann. Gén. Sci. Phys. 5 (13): 309, pl. 81, figs. 24-25 [also as ‘U. scalenia’].
Rafinesque, 1864. [in] Binney & Tryon, reprint: 53.
Type(s): NEOTYPE ANSP_20229, Ohio.

Obliquaria (Scalenaria) triangularis Rafinesque, 1820
Rafinesque, 1820. Ann. Gén. Sci. Phys. 5 (13): 309 [also as ‘U. triangularis’].
Rafinesque, 1864. [in] Binney & Tryon, reprint: 53.

Obliquaria (Scalenaria) triangularis var. nigrescens Rafinesque, 1820
Rafinesque, 1820. Ann. Gén. Sci. Phys. 5 (13): 309.
Rafinesque, 1864. [in] Binney & Tryon, reprint: 53.
(intro'd as intra-sp. of Obliquaria (Scalenaria) triangularis Rafinesque, 1820)

Obliquaria (Sintoxia) lateralis Rafinesque, 1820
Rafinesque, 1820. Ann. Gén. Sci. Phys. 5 (13): 310 [also as ‘U. lateralis’].
Rafinesque, 1864. [in] Binney & Tryon, reprint: 53.
Type(s): LECTOTYPE ANSP_20247, Riv. Kentucky.

Obliquaria (Sintoxia) sintoxia Rafinesque, 1820
Rafinesque, 1819. Jour. Phys. Chim. Hist. Nat. 88: 427 [as ‘U. (Obovaria) syntoxis’]. [nomen nudum]
Rafinesque, 1820. Ann. Gén. Sci. Phys. 5 (13): 310 [also as ‘U. sintoxia’].
Rafinesque, 1864. [in] Binney & Tryon, reprint: 29, 54.
(correct name for Unio (Obovaria) syntoxis Rafinesque, 1819)
Type(s): LECTOTYPE ANSP_20208, Ohio River.

Obliquaria rubra var. lineata Rafinesque, 1820
Rafinesque, 1820. Ann. Gén. Sci. Phys. 5 (13): 314.
Rafinesque, 1864. [in] Binney & Tryon, reprint: 57.
(intro'd as intra-sp. of Obliquaria rubra Rafinesque, 1820)

Obliquaria rubra var. pallida Rafinesque, 1820
Rafinesque, 1820. Ann. Gén. Sci. Phys. 5 (13): 314.
Rafinesque, 1864. [in] Binney & Tryon, reprint: 57.
(intro'd as intra-sp. of Obliquaria rubra Rafinesque, 1820)

Obovaria cordata Rafinesque, 1820
Rafinesque, 1820. Ann. Gén. Sci. Phys. 5 (13): 312, pl. 82, figs. 6-7 [also as ‘Unio cordata’].
Rafinesque, 1864. [in] Binney & Tryon, reprint: 55.
Type(s): LECTOTYPE ANSP_20221, Ohio River.

Obovaria obovalis Rafinesque, 1820
Rafinesque, 1818. Amer. Mon. Mag. 3: 355 [as ‘Potamilus obovalis’]. [nomen nudum]
Rafinesque, 1819. Jour. Phys. Chim. Hist. Nat. 88: 426 [as ‘U. (Obovaria) obovalis’]. [nomen nudum]
Rafinesque, 1820. Ann. Gén. Sci. Phys. 5 (13): 311 [also as ‘Unio obovalis’].
Rafinesque, 1864. [in] Binney & Tryon, reprint: 23, 29, 54.
Type(s): LECTOTYPE ANSP_20244, Ohio River.

Obovaria pachostea Rafinesque, 1820
Rafinesque, 1820. Ann. Gén. Sci. Phys. 5 (13): 312 [also as ‘U. pachostea’].
Rafinesque, 1864. [in] Binney & Tryon, reprint: 55.
(renamed Amblema antrosa Rafinesque, 1820)

Obovaria stegaria Rafinesque, 1820
Rafinesque, 1820. Ann. Gén. Sci. Phys. 5 (13): 312, pl. 82, figs. 4-5 [also as ‘Unio stegaria’].
Rafinesque, 1864. [in] Binney & Tryon, reprint: 55.

Obovaria striata Rafinesque, 1820
Rafinesque, 1820. Ann. Gén. Sci. Phys. 5 (13): 311 [also as ‘Unio striata’].
Rafinesque, 1864. [in] Binney & Tryon, reprint: 54.

Obovaria torsa Rafinesque, 1820
Rafinesque, 1819. Jour. Phys. Chim. Hist. Nat. 88: 427 [as ‘U. (Obovaria) torsa’]. [nomen nudum]
Rafinesque, 1820. Ann. Gén. Sci. Phys. 5 (13): 311, pl. 82, figs. 1-3 [also as ‘Unio torsa’].
Rafinesque, 1864. [in] Binney & Tryon, reprint: 29, 54.
Type(s): NEOTYPE ANSP_20256, Kentucky River.

Obovaria cordata var. rosea Rafinesque, 1820
Rafinesque, 1820. Ann. Gén. Sci. Phys. 5 (13): 312.
Rafinesque, 1864. [in] Binney & Tryon, reprint: 56.
(intro'd as intra-sp. of Obovaria cordata Rafinesque, 1820; homonym of Obovaria striata var. rosea Rafinesque, 1820)

Obovaria stegaria var. fasciolata Rafinesque, 1820
Rafinesque, 1820. Ann. Gén. Sci. Phys. 5 (13): 312.
Rafinesque, 1864. [in] Binney & Tryon, reprint: 55.
(intro'd as intra-sp. of Obovaria stegaria Rafinesque, 1820)

Obovaria stegaria var. tuberculata Rafinesque, 1820
Rafinesque, 1820. Ann. Gén. Sci. Phys. 5 (13): 312.
Rafinesque, 1864. [in] Binney & Tryon, reprint: 55.
(intro'd as intra-sp. of Obovaria stegaria Rafinesque, 1820; homonym of Obovaria striata var. tuberculata Rafinesque, 1820)
Type(s): LECTOTYPE ANSP_20241, Ohio River.

Obovaria striata var. rosea Rafinesque, 1820
Rafinesque, 1820. Ann. Gén. Sci. Phys. 5 (13): 311.
Rafinesque, 1864. [in] Binney & Tryon, reprint: 55.
(intro'd as intra-sp. of Obovaria striata Rafinesque, 1820)

Obovaria striata var. tuberculata Rafinesque, 1820
Rafinesque, 1820. Ann. Gén. Sci. Phys. 5 (13): 311.
Rafinesque, 1864. [in] Binney & Tryon, reprint: 55.
(intro'd as intra-sp. of Obovaria striata Rafinesque, 1820)

Obovaria torsa var. marginata Rafinesque, 1820
Rafinesque, 1820. Ann. Gén. Sci. Phys. 5 (13): 311.
Rafinesque, 1864. [in] Binney & Tryon, reprint: 54.
(intro'd as intra-sp. of Obovaria torsa Rafinesque, 1820)

Pleurobema cuneata Rafinesque, 1820
Rafinesque, 1820. Ann. Gén. Sci. Phys. 5 (13): 313 [also as ‘Unio cuneata’].
Rafinesque, 1864. [in] Binney & Tryon, reprint: 56.
Type(s): LECTOTYPE ANSP_20228, Riv. Ohio.

Pleurobema mytiloides Rafinesque, 1820
Rafinesque, 1819. Jour. Phys. Chim. Hist. Nat. 88: 427 [as ‘Unio (Pleurobema) mytiloïdes’]. [nomen nudum]
Rafinesque, 1820. Ann. Gén. Sci. Phys. 5 (13): 313, pl. 82, figs. 8-10 [also as ‘U. mytiloides’].
Rafinesque, 1864. [in] Binney & Tryon, reprint: 29, 56.
Type(s): LECTOTYPE ANSP_20223, [no locality available - North America].

Pleurobema cuneata var. maculata Rafinesque, 1820
Rafinesque, 1820. Ann. Gén. Sci. Phys. 5 (13): 313.
Rafinesque, 1864. [in] Binney & Tryon, reprint: 56.
(intro'd as intra-sp. of Pleurobema cuneata Rafinesque, 1820)

Pleurobema cuneata var. sulcata Rafinesque, 1820
Rafinesque, 1820. Ann. Gén. Sci. Phys. 5 (13): 313.
Rafinesque, 1864. [in] Binney & Tryon, reprint: 56.
(intro'd as intra-sp. of Pleurobema cuneata Rafinesque, 1820)

Truncilla triqueter Rafinesque, 1820
Rafinesque, 1818. Amer. Mon. Mag. 3: 355 [as ‘Potamilus triqueter’]. [nomen nudum]
Rafinesque, 1819. Jour. Phys. Chim. Hist. Nat. 88: 427 [as ‘U. (Truncilla) triquetra’]. [nomen nudum]
Rafinesque, 1820. Ann. Gén. Sci. Phys. 5 (13): 300, pl. 81, figs. 1-4 [also as ‘Unio triqueter’].
Rafinesque, 1864. [in] Binney & Tryon, reprint: 22, 29, 45.
Type(s): LECTOTYPE ANSP_20231, [no locality available - North America].

Truncilla truncata Rafinesque, 1820
Rafinesque, 1818. Amer. Mon. Mag. 3: 355 [as ‘Potamilus truncatus’]. [nomen nudum]
Rafinesque, 1819. Jour. Phys. Chim. Hist. Nat. 88: 427 [as ‘U. (Truncilla) truncata’]. [nomen nudum]
Rafinesque, 1820. Ann. Gén. Sci. Phys. 5 (13): 301 [also as ‘Unio truncata’].
Rafinesque, 1864. [in] Binney & Tryon, reprint: 22, 29, 46.
Type(s): LECTOTYPE ANSP_20217, Falls of Ohio.

Truncilla truncata var. fusca Rafinesque, 1820
Rafinesque, 1820. Ann. Gén. Sci. Phys. 5 (13): 301.
Rafinesque, 1864. [in] Binney & Tryon, reprint: 46.
(intro'd as intra-sp. of Truncilla truncata Rafinesque, 1820)

Truncilla truncata var. vermiculata Rafinesque, 1820
Rafinesque, 1820. Ann. Gén. Sci. Phys. 5 (13): 301.
Rafinesque, 1864. [in] Binney & Tryon, reprint: 46.
(intro'd as intra-sp. of Truncilla truncata Rafinesque, 1820)

Unio cyphia Rafinesque, 1820
Rafinesque, 1820. Ann. Gén. Sci. Phys. 5 (13): 305.
(incorrect original spelling of Obliquaria (Quadrula) cyphya Rafinesque, 1820)

Unio (Aximedia) elliptica Rafinesque, 1820
Rafinesque, 1818. Amer. Mon. Mag. 3: 355 [as ‘Potamilus ellipticus’]. [nomen nudum]
Rafinesque, 1820. Ann. Gén. Sci. Phys. 5 (13): 296 [also as ‘Elliptio elliptica’].
Rafinesque, 1864. [in] Binney & Tryon, reprint: 22, 42.
Type(s): LECTOTYPE ANSP_20213, [no locality available - North America].

Unio (Aximedia) levigata Rafinesque, 1820
Rafinesque, 1820. Ann. Gén. Sci. Phys. 5 (13): 296, pl. 80, fig. 11-13 [also as ‘Elliptio levigata’].
Rafinesque, 1864. [in] Binney & Tryon, reprint: 42.
Type(s): LECTOTYPE ANSP_20255, Kentucky River.

Unio (Aximedia) zonalis Rafinesque, 1820
Rafinesque, 1818. Amer. Mon. Mag. 3: 355 [as ‘Potamilus zonalis’]. [nomen nudum]
Rafinesque, 1820. Ann. Gén. Sci. Phys. 5 (13): 297 [also as ‘Elliptio zonalis’].
Rafinesque, 1864. [in] Binney & Tryon, reprint: 22, 42.

Unio (Elliptio) aurata Rafinesque, 1820
Rafinesque, 1818. Amer. Mon. Mag. 3: 355 [as ‘Potamilus auratus’]. [nomen nudum]
Rafinesque, 1820. Ann. Gén. Sci. Phys. 5 (13): 295.
Rafinesque, 1864. [in] Binney & Tryon, reprint: 22, 40.

Unio (Elliptio) fasciata Rafinesque, 1820
Rafinesque, 1818. Amer. Mon. Mag. 3: 355 [as ‘Potamilus fasciatus’]. [nomen nudum]
Rafinesque, 1820. Ann. Gén. Sci. Phys. 5 (13): 294.
Rafinesque, 1864. [in] Binney & Tryon, reprint: 22, 40.
Type(s): LECTOTYPE ANSP_20222, Kentucky River.

Unio (Elliptio) nigra Rafinesque, 1820
Rafinesque, 1818. Amer. Mon. Mag. 3: 355 [as ‘Potamilus niger’]. [nomen nudum]
Rafinesque, 1820. Ann. Gén. Sci. Phys. 5 (13): 291, pl. 80, figs. 1-4.
Rafinesque, 1864. [in] Binney & Tryon, reprint: 22, 37.
Type(s): LECTOTYPE ANSP_20243, River Ohio.

Unio (Elliptio) viridis Rafinesque, 1820
Rafinesque, 1820. Ann. Gén. Sci. Phys. 5 (13): 293.
Rafinesque, 1864. [in] Binney & Tryon, reprint: 39.
Type(s): NEOTYPE USNM_86261A (by Clarke, 1981: 28), Ohio.

Unio (Elliptio) fasciata var. alternata Rafinesque, 1820
Rafinesque, 1820. Ann. Gén. Sci. Phys. 5 (13): 294.
Rafinesque, 1864. [in] Binney & Tryon, reprint: 40.
(intro'd as intra-sp. of Unio (Elliptio) fasciata Rafinesque, 1820)

Unio (Elliptio) fasciata var. cuprea Rafinesque, 1820
Rafinesque, 1820. Ann. Gén. Sci. Phys. 5 (13): 294.
Rafinesque, 1864. [in] Binney & Tryon, reprint: 40.
(intro'd as intra-sp. of Unio (Elliptio) fasciata Rafinesque, 1820)

Unio (Elliptio) fasciata var. nigrofasciata Rafinesque, 1820
Rafinesque, 1820. Ann. Gén. Sci. Phys. 5 (13): 294.
Rafinesque, 1864. [in] Binney & Tryon, reprint: 40.
(intro'd as intra-sp. of Unio (Elliptio) fasciata Rafinesque, 1820)

Unio (Elliptio) nigra var. fusca Rafinesque, 1820
Rafinesque, 1820. Ann. Gén. Sci. Phys. 5 (13): 293.
Rafinesque, 1864. [in] Binney & Tryon, reprint: 39.
(intro'd as intra-sp. of Unio (Elliptio) nigra Rafinesque, 1820)

Unio (Elliptio) nigra var. maculata Rafinesque, 1820
Rafinesque, 1820. Ann. Gén. Sci. Phys. 5 (13): 293.
Rafinesque, 1864. [in] Binney & Tryon, reprint: 39.
(intro'd as intra-sp. of Unio (Elliptio) nigra Rafinesque, 1820)

Unio (Elliptio) viridis var. fuscata Rafinesque, 1820
Rafinesque, 1820. Ann. Gén. Sci. Phys. 5 (13): 294.
Rafinesque, 1864. [in] Binney & Tryon, reprint: 39.
(intro'd as intra-sp. of Unio (Elliptio) viridis Rafinesque, 1820)
Type(s): TYPE ANSP_20219, Riv. Kentucky.

Unio (Elliptio) viridis var. radiata Rafinesque, 1820
Rafinesque, 1820. Ann. Gén. Sci. Phys. 5 (13): 294.
Rafinesque, 1864. [in] Binney & Tryon, reprint: 39.
(intro'd as intra-sp. of Unio (Elliptio) viridis Rafinesque, 1820)

Unio (Eurynia) dilatata Rafinesque, 1820
Rafinesque, 1819. Jour. Phys. Chim. Hist. Nat. 88: 426. [nomen nudum]
Rafinesque, 1820. Ann. Gén. Sci. Phys. 5 (13): 297 [also as ‘Elliptio dilatata’].
Rafinesque, 1864. [in] Binney & Tryon, reprint: 29, 42.
(renamed Obliquaria violacea Rafinesque, 1831)
Type(s): LECTOTYPE ANSP_20248, Kentucky River.

Unio (Eurynia) latissima Rafinesque, 1820
Rafinesque, 1818. Amer. Mon. Mag. 3: 355 [as ‘Potamilus latissimus’]. [nomen nudum]
Rafinesque, 1819. Jour. Phys. Chim. Hist. Nat. 88: 426. [nomen nudum]
Rafinesque, 1820. Ann. Gén. Sci. Phys. 5 (13): 297, pl. 80, figs. 14-15 [also as ‘Ellipto latissima’].
Rafinesque, 1864. [in] Binney & Tryon, reprint: 22, 29, 42.
Type(s): LECTOTYPE ANSP_20212, Ohio River.

Unio (Eurynia) solenoides Rafinesque, 1820
Rafinesque, 1819. Jour. Phys. Chim. Hist. Nat. 88: 426 [as ‘solenoïdes’]. [nomen nudum]
Rafinesque, 1820. Ann. Gén. Sci. Phys. 5 (13): 298 [also as ‘Elliptio solenoides’].
Rafinesque, 1864. [in] Binney & Tryon, reprint: 29, 43.
Type(s): LECTOTYPE ANSP_20204, Ohio River.

Unio (Eurynia) teres Rafinesque, 1820
Rafinesque, 1820. Ann. Gén. Sci. Phys. 5 (13): 321 [also as ‘Elliptio teres’].
Rafinesque, 1864. [in] Binney & Tryon, reprint: 63.
Type(s): NEOTYPE INHS_89410 (by Keogh & Simons, 2019: 188), Wabash River, 3.4 km SSE of Calvin, IL.

Unio (Eurynia) solenoides var. cylindrica Rafinesque, 1820
‘Say’ Rafinesque, 1820. Ann. Gén. Sci. Phys. 5 (13): 298.
‘Say’ Rafinesque, 1864. [in] Binney & Tryon, reprint: 43.
(reference to Unio cylindricus Say, 1817)

Unio (Eurynia) solenoides var. interrupta Rafinesque, 1820
Rafinesque, 1820. Ann. Gén. Sci. Phys. 5 (13): 298.
Rafinesque, 1864. [in] Binney & Tryon, reprint: 43.
(intro'd as intra-sp. of Unio (Eurynia) solenoides Rafinesque, 1820)

Unio (Eurynia) solenoides var. nodosa Rafinesque, 1820
Rafinesque, 1818. Amer. Mon. Mag. 3: 355 [as ‘Potamilus nodosus’]. [nomen nudum]
Rafinesque, 1820. Ann. Gén. Sci. Phys. 5 (13): 298.
Rafinesque, 1864. [in] Binney & Tryon, reprint: 23, 43.
(intro'd as intra-sp. of Unio (Eurynia) solenoides Rafinesque, 1820)

Unio (Leptodea) fragilis Rafinesque, 1820
Rafinesque, 1818. Amer. Mon. Mag. 3: 355 [‘Potamilus fragilis’]. [nomen nudum]
Rafinesque, 1820. Ann. Gén. Sci. Phys. 5 (13): 295 [also as ‘Elliptio fragilis’].
Rafinesque, 1864. [in] Binney & Tryon, reprint: 22, 41.
Type(s): LECTOTYPE ANSP_20209, creeks, Kentucky.

Unio (Leptodea) leptodon Rafinesque, 1820
Rafinesque, 1818. Amer. Mon. Mag. 3: 355 [as ‘Potamilus leptodon’]. [nomen nudum]
Rafinesque, 1819. Jour. Phys. Chim. Hist. Nat. 88: 426 [as ‘U. (Plagiola) leptodon’]. [nomen nudum]
Rafinesque, 1820. Ann. Gén. Sci. Phys. 5 (13): 295, pl. 80, figs. 5-7 [also as ‘Elliptio leptodon’].
Rafinesque, 1864. [in] Binney & Tryon, reprint: 22, 29, 40.
Type(s): NEOTYPE ANSP_20214, Kentucky River.

Unio (Leptodea) nervosa Rafinesque, 1820
Rafinesque, 1818. Amer. Mon. Mag. 3: 355 [as ‘Potamilus nervosus’]. [nomen nudum]
Rafinesque, 1820. Ann. Gén. Sci. Phys. 5 (13): 296, pl. 80, figs. 8-10 [also as ‘Elliptio nervosa’].
Rafinesque, 1864. [in] Binney & Tryon, reprint: 22, 41.

Unio (Leptodea) fragilis var. fuscata Rafinesque, 1820
Rafinesque, 1820. Ann. Gén. Sci. Phys. 5 (13): 295.
Rafinesque, 1864. [in] Binney & Tryon, reprint: 41.
(intro'd as intra-sp. of Unio (Leptodea) fragilis Rafinesque, 1820; homonym of Unio (Elliptio) viridis var. fuscata Rafinesque, 1820)

Unio (Leptodea) leptodon var. olivacea Rafinesque, 1820
Rafinesque, 1820. Ann. Gén. Sci. Phys. 5 (13): 295.
Rafinesque, 1864. [in] Binney & Tryon, reprint: 41.
(intro'd as intra-sp. of Unio (Leptodea) leptodon Rafinesque, 1820)

Unio (Leptodea) leptodon var. semiradiata Rafinesque, 1820
Rafinesque, 1820. Ann. Gén. Sci. Phys. 5 (13): 295 [as ‘semi-radiata’].
Rafinesque, 1864. [in] Binney & Tryon, reprint: 41.
(intro'd as intra-sp. of Unio (Leptodea) leptodon Rafinesque, 1820)