Brown Slickhead, Bajacalifornia calcarata (Weber 1913)
Brown Slickhead, Bajacalifornia calcarata. Source: Australian National Fish Collection, CSIRO. License: CC By Attribution-NonCommercial
Summary:
A brown slickhead with a conical knob that points forward and downward on the tip of the lower jaw.
Cite this page as:
Bray, D.J. 2025, Bajacalifornia calcarata in Fishes of Australia, accessed 27 Jun 2025, https://fishesofaustralia.net.au/Home/species/4314
Brown Slickhead, Bajacalifornia calcarata (Weber 1913)
More Info
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Distribution |
North-west of Point Cloates, Western Australia. Elsewhere the species is circumglobal in tropical oceans, except the eastern Pacific. Adults are thought to be benthopelagic on the continental slope, while larvae and juveniles are meso- to bathypelagic in 700-2,500 m. |
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Features |
Dorsal fin 17; Anal fin 15; Pectoral fin 14-15; Pelvic fin 7-9; Gill rakers 4 +1 + 15-18=22-26; Pyloric caeca 13-22; Transverse scale rows from the first lateral-line scale to dorsal-fin origin 23-27; Vertebrae 35-39 + 19-23 = 57-60. Upper jaw reaching posterior to below mid-orbit; anterior tip of lower jaw slightly projected ventrally; gill filaments relatively long, free at bases. |
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Etymology |
The specific name is from the Latin calcar (= spur, heel spur) and the suffix -atus, meaning 'having a spur', 'armed with a spur'. |
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Species Citation |
Bathytroctes calcaratus Weber 1913. Die Fische der Siboga-Expedition 57: 11, pl. 4(figs 5-5a). Type locality: Makassar Strait, Sulawesi, 0°36.5'S, 119°29.5'E, depth 724 m, Siboga stations 85 and 173. |
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Author |
Bray, D.J. 2025 |
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Resources |
Brown Slickhead, Bajacalifornia calcarata (Weber 1913)
References
Knudsen, S. 2015. Bajacalifornia calcarata. The IUCN Red List of Threatened Species 2015: e.T57453743A60780380. https://dx.doi.org/10.2305/IUCN.UK.2015-4.RLTS.T57453743A60780380.en. Accessed on 23 April 2025.
Markle, D.F. & Krefft, G. 1985. A new species and review of Bajacalifornia (Pisces: Alepocephalidae) with comments on the hook jaw of Narcetes stomias. Copeia 1985(2): 345-356 https://doi.org/10.2307/1444844
Miya, M. & Markle, D.F. 1993. Bajacalifornia aequatoris, new species of alepocephalid fish (Pisces: Salmoniformes) from the central equatorial Pacific. Copeia 1993(3): 743-747. https://doi.org/10.2307/1447236
Mostarda, E., Harold, A.S., Sutton, T.T. & Hulley, P.A. 2023. Identification guide to the mesopelagicfishes of the western Indian Ocean. FAO Species Identification Guide for Fishery Purposes. Rome, FAO. https://doi.org/10.4060/cc7822en
Parr, A.E. 1952. Revision of the species currently referred to Alepocephalus, Halisauriceps, Bathytroctes and Bajacalifornia with introduction of two new genera. Bulletin of the Museum of Comparative Zoology, Harvard 107(4): 255-269
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 pp. 1397-2068.
Sazonov, Y.I. & Williams, A. 2001. A review of the alepocephalid fishes (Argentiniformes, Alepocephalidae) from the continental slope of Australia: Part I. Journal of Ichthyology 41(suppl. 1): 1-36
Senda, T., Kawai, T., Tashiro, F., Imamura, H., et al. 2020. Deep-sea fishes from the Andaman Sea by R/V Chakratong Tongyai during 1996-2000. Part 4: order Argentiniformes. Phuket Marine Biological Center Research Bulletin 77: 109-119. https://doi.org/10.14456/pmbcrb.2020.10
Weber, M. 1913. Die Fische der Siboga-Expedition. Sitzungsberichte der Akademie der Wissenschaften in Wien. Mathematisch-Naturwissenschaftliche Klasse 57: 1-710 123 figs 12 pls See ref at BHL
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
