Antipodean Slickhead, Alepocephalus antipodianus (Parrott 1948)
An Antipodean Slickhead, Alepocephalus antipodianus, from seamounts in the Tasman Sea. Source: Robin McPhee / NORFANZ Founding Parties. License: All rights reserved
Antipodean Slickhead, Alepocephalus antipodianus (Parrott 1948)
More Info
Distribution |
Off Broken Bay, New South Wales, to west of Shark Bay, Western Australia, including off Tasmania; also the Lord Howe Plateau and the Norfolk Ridge in the Tasman Sea. Elsewhere, the species occurs worldwide in tropical to sub-Antarctic latitudes. |
Features |
Dorsal fin 17–18; Anal fin 19–20; Pectoral fin 8–10; Pelvic fin 7; Lateral line 55–73; Gill rakers 6–9 + 14–20 = 20–28; Vertebrae (preural) 51–57. Head rather wide and long, head length about 32% SL, snout length usually equal to or slightly shorter than eye diameter, rarely slightly longer; upper jaw to or beyond middle of eye; no white connective tissue along eye margin. Body covered in relatively small deciduous scales; head naked; scale rows before the dorsal and anal fins oblique, 8–12 scales above the lateral line and 9–14 scales below the lateral line. Light organs absent. Dorsal and anal fins of approx equal length, dorsal-fin origin on or close to a vertical line through anal-fin origin. |
Size |
To 66 cm SL. |
Colour |
Body brownish pink, yellowish where scales and skin have been removed; scale pockets dark, head black. |
Biology |
Almost nothing is known of the biology of this species. |
Similar Species |
The Smallscale Slickhead, Alepocephalus australis, differs in having larger scales (47-56 scales in longitudinal series along the lateral line). |
Etymology |
The specific name antipodianus refers to the type locality, New Zealand, as being in the Antipodes, essentially the other side of the world from Britain. |
Species Citation |
Bathytroctes antipodianus Parrott 1948, Records of the Canterbury Museum 5: 143, pl. 31. Type locality: Kaikoura, New Zealand. |
Author |
Bray, D.J. 2024 |
Resources |
Antipodean Slickhead, Alepocephalus antipodianus (Parrott 1948)
References
Sazonov, Y.I. & Ivanov, A.N. 1980. Slickheads (Alepocephalidae and Leptochilichthyidae) from thalassobathyal zone of the Indian Ocean. Trudy Instituta Okeanologii. Akademiya Nauk SSSR. Moskva 110: 7-104 figs 1-25 [in Russian]
Sazonov, Y.I. & Markle, D.F. 1999. Family Alepocephalidae. pp. 1888-1893 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 1397-2068 pp.
Williams, A., Last, P.R., Gomon, M.F. & Paxton, J.R. 1996. Species composition and checklist of the demersal ichthyofauna of the continental slope off Western Australia (20–35º). Records of the Western Australian Museum 18: 135-155 (as Alepocephalus cf productus)
Williams, A. & Sazonov, Y.I. 2008. Family Alepocephalidae and Platytroctidae. pp. 201-210 in Gomon. M.F., Bray, D.J. & Kuiter, R.H (eds). Fishes of Australia's Southern Coast. Sydney : Reed New Holland 928 pp.
Williams, A. & Stewart, A.L. 2015. 59 Family Alepocephalidae. pp. 354-376 in Roberts, C.D., Stewart, A.L. & & Struthers, C.D. (eds). The fishes of New Zealand 2: 1-574