Bivalvia | Unionida | Hyrioidea | Hyriidae | Velesunioninae | Velesunio ambiguus

Haas, 1910. Nachr. Bl. Dtsch. Malak. Ges. 42: 100.
Haas, 1911. Conch. Cab. 9 (pt. 2, h. 43): pl. 16, fig. 5.
Haas, 1913. Conch. Cab. 9 (pt. 2, h. 48): 161.
LECTOTYPE SMF_3531 (by Zilch, 1967: 121), N. Guinea; Umg. v. Konstantinhafen ? [revised to mainland Australia].
+ Velesunio ambiguus (Philippi, 1847) — Nagel, 2025: 214, fig. 231.
lectotype SMF 3531/1 (by Zilch, 1967: 121) — Papua New Guinea, “Neuguinea (Fly River?)”, later corrected by Haas... to “vom australischen Festland” [mainland Australia] (coll. O. von Moellendorf, leg. J.S. Kubary)
paralectotype SMF 3532/1
- UNASSIGNED — Graf & Cummings, 2021: 29.
- UNASSIGNED — Walker et al., 2014: 66.
= Velesunio ovata Haas, 1910 — Bogan, 2010: [web].
= Velesunio ovata [sic] (Haas, 1910) — Graf & Cummings, 2007: 313.
- UNASSIGNED — B.J. Smith, 1992: 22.
holotype SMF_3531 — Fly River, New Guinea (error: probably Australia).
paratype SMF_3531 — Fly River, New Guinea (error: probably Australia).
= Velesunio ovatus (Haas) — Haas, 1969: 494.
= Microdontia ovata Haas, 1910 — Modell, 1964: 87.
= Velesunio ovatus (Haas, 1910) — McMichael & Hiscock, 1958: 481.
= Velesunio ovata (Haas, 1910) — McMichael, 1956: 40.
= Nodularia (s.s.) (Group of N. contradens) ovata (Haas) — Simpson, 1914: 1010.
= Microdontia ovata Haas, 1910 — Haas, 1913: 161, pl. 16, fig. 5.
= Microdontia ovata n. sp. — Haas, 1910: 100.