MUSSELpdb
Taxonomy
Species & Genus Richness of
freshwater mussels
by Taxonomy
Species & Genus Richness of
freshwater bivalves
by Family
Geography
Species Richness & Endemism of
freshwater mussels
by Geography
Data last updated
Fri 13 February 2026
Bivalvia | ... | Unionidae | Unioninae | Anodontini | Alasmidontina | Utterbackiana heardi
nominal species Anodonta heardi Gordon & Hoeh, 1995
Anodonta heardi Gordon & Hoeh, 1995 = Utterbackiana heardi
Gordon & Hoeh, 1995. Walkerana 7(17-18): 265, fig. 1.
Type(s): HOLOTYPE (ORIG. DESIG.) UMMZ_253324, Apalachicola River, approximately 9.7 km north of Blountstown at Ocheesee Landing, Calhoun County, Florida.
Taxonomic Opinions
= Utterbackiana heardi — Perkins et al., 2025: Table S1.
= Utterbackiana heardi (Gordon & Hoeh, 1995) — FMCS, 2025: [7].
= Utterbackiana heardi — Whelan et al., 2023: 13, Table S1.
= Utterbackiana heardi (Gordon and Hoeh, 1995) — Hopper et al., 2023.
= Utterbackiana heardi (Gordon & Hoeh, 1995) — Graf & Cummings, 2021: 15.
= Utterbackiana heardi (Gordon & Hoeh, 1995) — FMCS, 2021: [7].
= Anodonta heardi — Smith et al., 2018: 51.
= Utterbackiana heardi (Gordon & Hoeh, 1995) — Williams et al., 2017: 44.
= Anodonta heardi Gordon and Hoeh, 1995 — Williams et al., 2014: 156, text fig..
= Anodonta heardi M.E. Gordon & Hoeh, 1995 — ITIS, 2012: [web].
= Anodonta heardi — Haag, 2012: 73.
= Anodonta heardi Gordon & Hoeh, 1995 — Williams et al., 2011: 6.
= Anodonta heardi Gordon & Hoeh, 1995 — Bogan, 2010: [2].
= Utterbackia heardi — Cummings & Graf, 2010: 378.
= Anodonta heardi Gordon & Hoeh, 1995 — Williams et al., 2008: 805.
= Utterbackia heardi (Gordon & Hoeh, 1995) — Graf & Cummings, 2007: 305.
= Anodonta heardi (Gordon & Hoeh, 1995) — Zanatta et al., 2007: 212.
= Anodonta heardi Gordon & Hoeh, 1995 — Brim Box & Williams, 2000: 31, fig. 9.
= Anodonta heardi Gordon & Hoeh, 1995 — Turgeon et al., 1998: 32.
= Anodonta heardi n. sp. — Gordon & Hoeh, 1995: 265, figs. 1, 6.
