Eaton's Skate, Bathyraja eatonii (Günther 1876)


Illustration of Eaton's Skate, Bathyraja eatonii. Source: Gon & Heemstra (eds) (1990) Fishes of the Southern Ocean / Biodiversity Heritage Library. License: CC BY Attribution

Summary:
A brown to marbled brown and yellowish-brown skate, with the sides of the snout and thorns paler, and a white underside with a blackish margin on the disc, and black patches around the anus and on the tail. Juveniles have semi-translucent yellowish-brown margins on the disc and brown and white speckles.

Cite this page as:
Bray, D.J. 2018, Bathyraja eatonii in Fishes of Australia, accessed 12 Nov 2019, http://fishesofaustralia.net.au/home/species/5188

Eaton's Skate, Bathyraja eatonii (Günther 1876)

More Info


Distribution

Southern Ocean in Australia's Antarctic and Subantarctic waters.

Features

Nuchal median thorns 1-2 (often absent in large adults); Tail median thorns 8-18.
Disk diamond shaped, juveniles covered in prickles, becoming smoother with age. Prickles in adults restricted to pectoral and pelvic patches and a median band on back. Median thorn row restricted to tail. Tail median thorn row flanked with lateral finfolds. Snout moderate, anterior margins almost straight. Pectoral fins with concave anterior margin. Ocular, rostral, and scapular thorns absent. Alar thorns in a curved band. Usually a single interdorsal thorn. Dorsal fins very close together. Pelvic fins strongly notched. Claspers stout. Teeth conical, sharp.

Author

Bray, D.J. 2018

Resources


Eaton's Skate, Bathyraja eatonii (Günther 1876)

References


Last, P.R., Stehmann, M.F.W., Séret, B. & Weigmann, S. 2016. 20. Softnose Skates. Family Arhynchobatidae, pp. 346-472, in Last, P.R., White, W.T., Carvalho, M.R. de, Séret, B., Stehmann, M.F.W. & Naylor, G.J.P. (eds) Rays of the World. Clayton South, Victoria : CSIRO Publishing 790 pp.

McEachran, J.D. & Dunn, K.A. 1998. Phylogenetic analysis of skates, a morphologically conservative clade of elasmobranchs (Chondrichthyes: Rajidae). Copeia 1998(2): 271-290.

Stehmann, M. & Bürkel, D.L. 1990. Rajidae, pp. 86-97. In Gon, O. & Heemstra, P.C. (eds) Fishes of the Southern Ocean. Grahamstown : J.L.B. Smith Institute of Ichthyology 462 pp.

Quick Facts


CAAB Code:37031750

Max Size:126 cm TL

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