Urogymnus dalyensis (Last & Manjaji-Matsumoto, 2008)

White, William T. & Ko’Ou, Alfred, 2018, An annotated checklist of the chondrichthyans of Papua New Guinea, Zootaxa 4411 (1), pp. 1-82 : 63

Urogymnus dalyensis (Last & Manjaji-Matsumoto, 2008)

Freshwater Whipray

Himantura dalyensis Last & Manjaji-Matsumoto 2008: 284 , Figs 1 , 2a , 3–4. Holotype: CSIRO H 2503-01. Type locality: Pentecost River (Bindola Creek junction), Western Australia.

Local synonymy: Himantura sp.— Compagno & Roberts, 1982: 337, fig. 12 (Lake Murray). Himantura sp. undet.— Kailola, 1987: 29 (Fly River). Himantura chaophraya— Monkolprasit & Roberts, 1990: 207 (Fly River basin; in this species group); Last & Stevens, 1994: 399 (Fly River Basin). Himantura dalyensis— Last & Manjaji- Matsumoto, 2008: 289 (possibly Fly River Basin); Last & Stevens, 2009: 442 (possibly Fly River Basin). Urogymnus dalyensis —Last et al., 2016a: 615 (Fly River Basin); White et al., 2018: 268, figs ( PNG).

PNG voucher material: None.

Remarks: First recorded from PNG by Compagno & Roberts (1982), as Himantura sp., from the Fly River basin. Fly River record (photograph only) was considered as belonging to the Himantura chaophraya (= Urogymnus polylepis (Bleeker, 1852)) species group. Specimens needed to confirm it is conspecific with this species. Possibly widespread in the extensive river systems of PNG. Previously placed in the genus Himantura .

Figures

FIGURE 1. The current location of the KFRS collection in the biological sciences area of the University of PNG.

FIGURE 2. Number of museum specimen lots from PNG waters per 5-yearly intervals between 1820 and the present. All museum collections combined; grey bars dnote existing lots; red bars denote lost or destroyed lots.