Winton’s Grunter, Hannia wintoni Shelley, Delaval, Le Feuvre, Dempster, Raadik & Swearer 2020


Winton's Grunter, Hannia wintoni, from the Prince Regent River in The Kimberley, Western Australia. Source: Matt Le Feuvre / University of Melbourne & Museums Victoria. License: All rights reserved

Summary:
A silvery-gold grunter fading to silver below

Cite this page as:
Bray, D.J. 2021, Hannia wintoni in Fishes of Australia, accessed 07 Mar 2021, http://136.154.202.208/Home/species/5565

Winton’s Grunter, Hannia wintoni Shelley, Delaval, Le Feuvre, Dempster, Raadik & Swearer 2020

More Info


Distribution

Endemic to the Prince Regent and Roe River catchments draining northwest from the Kimberley Plateau, Western Australia.
Inhabits clear waters, over sandy to rocky substrates, with larger adults in deeper (> 2 m), slow to moderate flowing areas around large boulders or holding position in the centre of stream flow. Juveniles more commonly found in moderately deep and shallow runs, darting between the cover of rocks and woody debris. 

Features

Dorsal fin XII–XIII, 9–10; Anal fin III, 7–9; Caudal fin 10+8+7+10 (9–10+8+7+8–10; Pectoral fin 13–16; Pelvic fin I, 5; Vertebrae 10+15=25; Lateral line scales 34–40; Scales above lateral line 6–7; scales below lateral line 11–12; Pre-dorsal scales 10–13; Cheek scale rows 4–6; Caudal circumpeduncular scales 16–19; Gill rakers on first arch 8–10 + 15–16=23–26; Opercular spines 2; Preopercular spines 16–27.

Colour

Top of head, from tip of snout to insertion of first scale row, dark orange. A horizontal silvery-gold band of pigmentation from posterior of lacrimal around ventral and posterior borders of orbit to level of dorsal edge of eye. Body overall silvery-gold dorsally, fading to silver below. Each scale above scale row running through base of pectoral fin edged with dark orange pigmentation; intensity of pigmentation increasing dorsally. Dorsal fins dusky orange overall with dark outer margin; outer rays of soft dorsal whitish-grey. Caudal fin dusky orange overall with dark outer margin; outer rays of soft dorsal whitish-grey; dark blotch sometimes present on lower lobe, more prominent in juveniles. Anal fin dusky orange overall; whitish-grey blotch on posterior rays. Pelvic fin dusky orange overall; whitish-grey outer margin. Pectoral fins dark at base, overall dusky with increasing orange-brown colouration to ray margins dorsally

Feeding

Omnivore - feeds mostly on insect larvae, terrestrial insects, crustaceans and some vegetation.

Etymology

The species is named wintoni in honour of Western Australian author and Kimberley conservationist Tim Winton, whose many novels espouse a love of fish and the Australian landscape.

Species Citation

Hannia wintoni Shelley, Delaval, Le Feuvre, Dempster, Raadik & Swearer 2020, Zootaxa 4869(4): 573, Fig. 5. Type locality: unnamed creek flowing into the lower Prince Regent River, Western Australia, 15°25’1.7’’S, 125°14’13.3”E, 25 m elevation.

Author

Bray, D.J. 2021

Resources

Atlas of Living Australia

Winton’s Grunter, Hannia wintoni Shelley, Delaval, Le Feuvre, Dempster, Raadik & Swearer 2020

References


Shelley, J.J., Delaval, A. Le Feuvre, M.C., Dempster, T., Raadik, T.A. & Swearer, S.E. 2020. Revision of the genus Hannia (Teleostei, Terapontidae), with description of a new species, Hannia wintoni, from the Kimberley, Western Australia. Zootaxa 4869(4): 562-586 https://doi.org/10.11646/zootaxa.4869.4.5 (as Hannia greenwayi II)

Shelley, J.J., Gomon, M.F. & Le Feuvre, M.C. 2018. Family Terapontidae, pp. 118-158 in Shelley, J.J., Morgan, D.L., Hammer, M.P., Le Feuvre, M.C., Moore, G.I., Gomon, M.F., Allen, M.G. & Saunders, T. (eds) A field guide to the freshwater fishes of the Kimberley. Murdoch University, Murdoch, Western Australia, 262 pp. (as Hannia sp.)

Shelley, J.J., Swearer, S.E., Dempster, T., Adams, M., Le Feuvre, M.C., Hammer, M.P. & Unmack, P.J. 2020. Plio-Pleistocene sea-level changes drive speciation of freshwater fishes in north-western Australia. Journal of Biogeography 47(8): 1727-1738. https://doi.org/10.1111/jbi.13856 (as Hannia greenwayi II)

Shelley, J.J., Unmack, P.J., Dempster, T., Le Feuvre, M.C. & Swearer, S.E. 2019. The Kimberley, north-western Australia, as a cradle of evolution and endemic biodiversity: An example using grunters (Terapontidae). Journal of Biogeography 46: 2420-2432. https://doi.org/10.1111/jbi.13682 (as Hannia greenwayi II)

Quick Facts


Habitat:Freshwater streams

Max Size:20 cm SL

Native:Endemic

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