Western Leg Skate, Sinobatis bulbicauda Last & Séret 2008
Other Names: West Australian Legskate
A Western Leg Skate, Sinobatis bulbicauda. Source: Australian National Fish Collection, CSIRO. License: CC by Attribution-NonCommercial
Summary:
A pale pinkish brown leg skate with a uniformly pale underside.
Cite this page as:
Dianne J. Bray, Sinobatis bulbicauda in Fishes of Australia, accessed 20 Apr 2024, https://fishesofaustralia.net.au/Home/species/1760
Western Leg Skate, Sinobatis bulbicauda Last & Séret 2008
More Info
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Distribution |
Found on the outer continental shelf and slopes off Western Australia and eastern Indonesia. In Australia, known from west of Gantheaume Bay, Western Australia (27°49'S, 113°01'E), northwards to off Ashmore Reef in the Timor Sea (13°25'S, 122°54'E). |
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Features |
Disc moderate-sized, width at anterior orbit 5.2-7.8 times mouth width; tail moderately elongate to short, its postcloacal length 79-170% of disc length; eyes relatively large, orbit diameter 4.7-8.8 in horizontal snout length, 6.7-10.6 in head length; distal portion of tail expanded laterally in specimens exceeding about 28 cm TL (130 mm DW), width of tail near tip 1.3-2.2 times tail width at its midlength; pectoral-fin radials 66-71; moderate-sized pelvic fins, anterior lobe 12.1-18.1% TL; anterior pelvic-fin lobe rather broad-based, width 1.7-3.2 in distance between pelvic-fin origins; caudal fin rudimentary; tooth rows 20-28, in each jaw of adults; with teeth of adult males with greatly elongated conical cusps; 25-31 abdominal vertebral centra; 148-171 total centra. |
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Size |
Female 56.0 cm TL, Male 43.3 cm TL. |
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Biology |
Very little is known about the population size and biology of this species. |
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Fisheries |
Taken occasionally as bycatch in commercial trawls. |
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Etymology |
The specific name bulbicauda is from the Latin ‘bulbus’ (swelling) and ‘cauda’ (tail or appendage) in reference to the flattened expansion of the tail near its tip. |
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Species Citation |
Sinobatis bulbicauda Last & Séret 2008, Zootaxa 1671: 37, figs 1, 3-5, 11, 13. Type locality: west of Cape Farquhar, WA [23°44'S, 112°35'E], ♂. |
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Author |
Dianne J. Bray |
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Resources |
Western Leg Skate, Sinobatis bulbicauda Last & Séret 2008
References
Duryea, J. & Ebert, D.A. 2012. Sinobatis bulbicauda. The IUCN Red List of Threatened Species 2012: e.T195477A2382427. http://dx.doi.org/10.2305/IUCN.UK.2012-1.RLTS.T195477A2382427.en . Downloaded on 19 October 2015.
Last, P.R. & Compagno, L.J.V. 1999. Families Rajidae, Arhynchobatidae, Anacanthobatidae. pp. 1452-1466 in Carpenter, K.E. & Niem, V.H. (eds). The Living Marine Resources of the Western Central Pacific. FAO Species Identification Guide for Fisheries Purposes. Rome : FAO Vol. 3 pp. 1397-2068. (p. 1466, as Anacanthobatis sp. A)
Last, P.R. & Séret, B. 2008. Three new legskates of the genus Sinobatis (Rajoidei: Anacanthobatidae) from the Indo-West Pacific. Zootaxa 1671: 33-58.
Last, P.R. & Stevens, J.D. 1994. Sharks and Rays of Australia. Canberra : CSIRO Australia 513 pp. 84 pls. (p. 358 as Anacanthobatis sp. A.)
Last, P.R. & Stevens, J.D. 2009. Sharks and Rays of Australia. Collingwood : CSIRO Publishing Australia 2, 550 pp.
