Southern Spineback, Notacanthus sexspinis Richardson 1846
Other Names: Spineback, Spine-back, Spiny Eel, Spiny-back Eel
Southern Spineback, Notacanthus sexspinis. Source: Australian National Fish Collection, CSIRO. License: CC by Attribution-NonCommercial
Summary:
A pale brown deep-sea spiny eel, paler below, with the inside of the mouth black, the dorsal fin comprised of six to eight short unconnected spines, and a long-based anal fin extending to the tip of the tail.
Cite this page as:
Dianne J. Bray, Notacanthus sexspinis in Fishes of Australia, accessed 25 Apr 2024, https://fishesofaustralia.net.au/Home/species/3979
Southern Spineback, Notacanthus sexspinis Richardson 1846
More Info
Distribution |
Occurs off the southern half of Australia, from off Newcastle, New South Wales, to off Bunbury, Western Australia. Elsewhere the species is circumglobal in temperate southern hemisphere waters |
Features |
Dorsal fin VI-VIII, 1; Anal fin X-XV, 150-160; Pectoral fin 12-14; Pelvic fin I-II, 6-8. Body depth 10-12% TL; head length 13-16% TL; teeth on palatines and lower jaw in a single complete row, occasionally a second row anteriorly on the jaw. |
Feeding |
Reportedly feeds on bottom-dwelling invertebrates such as sea anemones, sea stars, and polychaete worms. |
Remarks |
Although spinebacks have a leptocephalus larval stage, they differ noticeably from true eels in having the dorsal fin reduced to a series of short, sharp spines unconnected along the back, the lateral-line closer to the dorsal than the ventral profile of the body, a blunt snout projecting well beyond the mouth, and pelvic fins united and located closer to the anus that the head. |
Etymology |
Gomon, M.F. in Gomon, M.F., Glover, C.J.M. & R.H. Kuiter (Eds). 1994. The Fishes of Australia's South Coast. State Print, Adelaide. Pp. 992.Hoese, D.F., Bray, D.J., Paxton, J.R. & G.R. Allen. 2006. Fishes. In Beesley, P.L. & A. Wells. (eds) Zoological Catalogue of Australia. Volume 35. ABRS & CSIRO Publishing: Australia. parts 1-3, pages 1-2178. |
Species Citation |
Notacanthus sexspinis Richardson 1846, Ichthyol. voy. H. M. S. Erebus & Terror 2(2): 54, Pl. 32 (figs. 4-11). Type locality: King George Sound, Western Australia. |
Author |
Dianne J. Bray |
Resources |
Southern Spineback, Notacanthus sexspinis Richardson 1846
References
Blaber, S.J.M. & Bulman, C.M. 1987. Diets of fishes of the upper continental slope of eastern Tasmania: content, calorific values, dietary overlap and trophic relationships. Marine Biology 95: 345-356.
Macpherson, E. & Roel, B.A. 1987. Trophic relationships in the demersal fish community off Namibia. S. Afr. J. Mar. Sci. 5: 585-596.
May, J.L. & Maxwell, J.G.H. 1986. Trawl fish from temperate waters of Australia. CSIRO Division of Fisheries Research, Tasmania. 492 pp.
McDowell, S.B. 1973. Order Heteromi (Notacanthiformes). In: Fishes of the Western North Atlantic. Memoirs of the Sears Foundation of Marine Research 1(6): 1-228.
Pakhorukov, N.P. 2001. Distribution and behavior of bottom and near-bottom fishes in the Rio Grande Submarine Rise (Atlantic Ocean). Journal of Ichthyology 41(4): 300-307.
Richardson, J. 1846. Ichthyology. 53-74 pls 31-41, 43-44 & 53 (part) in Richardson, J. & Gray, J.E. (eds). The Zoology of the Voyage of H.M.S. Erebus and Terror under the Command of Captain Sir James Clark Ross, R.N., F.R.S., during the years 1839–43. London : E.W. Janson Vol. 2 139 pp.
Smith, D.G. 1999. Families Halosauridae, Notacanthidae, Lipogenyidae, Anguillidae, Moringuidae, Chlopsidae, Myrocongridae. pp. 1625-1642 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.
Smith, D.G. 2008. Family Notacanthidae - Spinebacks, p. 185-186, in Gomon, M.F., Bray, D.J. & Kuiter, R.H. (eds). Fishes of Australia's Southern Coast. Sydney : Reed New Holland 928 pp.