Spotted Stingaree, Urolophus gigas Scott 1954


Other Names: Sinclairs Stingaree

A Spotted Stingaree, Urolophus gigas, at St Leonards Jetty, Port Phillip, Victoria - depth 5 metres . Source: Jasper Montana / Museum Victoria. License: CC by Attribution

Summary:
A dark brown to blackish stingaree covered with many indistinct pale rings and spots; underside white or cream, margin of disc and tail grey or black.  
The spine on the tail behind the dorsal fin is venomous and may cause a very painful wound.

Video of a Spotted Stingaree at Balnarring, Western Port, Victoria.

Cite this page as:
Bray, D.J. 2018, Urolophus gigas in Fishes of Australia, accessed 13 Nov 2018, http://fishesofaustralia.net.au/home/species/3534

Spotted Stingaree, Urolophus gigas Scott 1954

More Info


Distribution

Endemic to and relatively widespread in southern Australian from about Lakes Entrance, Victoria, to Albany, Western Australia, including northern Tasmania. Inhabits seagrass areas and shallow rocky reefs in depths to 35 m - often resting partly buried in sand. 

Features

Body extremely depressed;  tail rounded in cross-section, moderately short (67-72% disc length), lateral skin folds absent. Disc oval, slightly longer than wide, broadest part immediately behind level of spiracles, anterior edge rounded; snout fleshy, tip rarely extended; eyes small (18-20% of distance between snout tip and middle of lower jaw); posterior margin of spiracles rounded; mouth small, 9-12 papillae on mouth floor; internasal flap skirt-shaped, posterior angle not extended into distinct lobe; posterolateral border of nostrils not extended into distinct lobe and not forming flattened tentacle; five pairs of gill slits on underside of disc. 
Skin smooth. Dorsal fin present on the tail before the venomous spine; anal fin absent; caudal fin short, deep.

Feeding

Presumably feeds on benthic invertebrates and fishes.

Biology

Little is known of the biology of the Spotted Stingaree. Females give birth to live young. Stingarees are aplacental viviparous, meaning that the embryos emerge from eggs within the uterus and undergo further development until they are born. After emerging from their egg cases, the embryos are initially sustained by their yolk, and later by histotroph, a "uterine milk" produced by the mother. 

Fisheries

Ocasionally taken by otter trawl and gillnet as bycatch  in commercial fisheries in southeastern Australia. 

Remarks

The Spotted Stingaree is often misidentified by divers as the young of the Smooth Stingray (Dasyatis brevicaudata).

Species Citation

Urolophus gigas Scott, 1954, Rec. South Aust. Mus. 11(2): 105, pl. 22. Type locality Port Noarlunga, South Australia..

Author

Bray, D.J. 2018

Spotted Stingaree, Urolophus gigas Scott 1954

References


Gomon, M.F., Yearsley, G.K. & Last, P.R. 2008. Family Urolophidae. 125-137 pp. in Gomon. M.F., Bray, D.J. & Kuiter, R.H. (eds) Fishes of Australia's Southern Coast. Sydney : Reed New Holland 928 pp.

Hutchins, J.B. & Swainston, R. 1986. Sea Fishes of Southern Australia. Complete field guide for anglers and divers. Perth : Swainston Publishing 180 pp.

Kuiter, R.H. 1993. Coastal Fishes of South-eastern Australia. Bathurst : Crawford House Press 437 pp.

Kuiter, R.H. 1996. Guide to Sea Fishes of Australia. A comprehensive reference for divers and fishermen. Sydney, NSW, Australia : New Holland Publishers xvii, 434 pp.

Last, P.R. & Gomon, M.F. 1994. Family Urolophidae. pp. 172-181 figs 150-159 in Gomon, M.F., Glover, C.J.M. & Kuiter, R.H. (eds). The Fishes of Australia's South Coast. Adelaide : State Printer 992 pp. 810 figs.

Last, P.R. & Marshall, L.J. 2006. Urolophus gigas In: IUCN 2013. IUCN Red List of Threatened Species. Version 2013.2. . Downloaded on 05 April 2014.

Last, P.R. & Stevens, J.D. 1994. Sharks and Rays of Australia. Canberra : CSIRO Australia 513 pp. 84 pls.

Last, P.R. & Stevens, J.D. 2009. Sharks and Rays of Australia. Collingwood : CSIRO Publishing Australia 2, 550 pp.

Last, P.R., Yearsley, G.K. & White, W.T. 2016. Family Urolophidae pp. 676-705. In: Last, P.R., White, W.T., de Carvalho, M.R., Séret, B., Stehmann, M.F.W. & & Naylor, G.J.P. (eds) Rays of the World. Melbourne: CSIRO Publishing, 800 pp.

Scott, T.D. 1954. Four new fishes from South Australia. Records of the South Australian Museum (Adelaide) 11(2): 105-112 figs 1-3 pl. 22

Quick Facts


CAAB Code:37038003

Conservation:IUCN Least Concern

Danger:Venomous spine on tail

Depth:to 35 m

Habitat:Seagrass beds, rocky reefs

Max Size:70 cm TL

Native:Endemic

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CAAB distribution map