Broad-snout Deepsea Batfish, Halieutopsis bathyoreos Bradbury 1988
Other Names: Broad Batfish
Broad-snout Deepsea Batfish, Halieutopsis bathyoreos. Source: Australian National Fish Collection, CSIRO. License: CC by Attribution-NonCommercial
Summary:
A uniformly grey to dark grey batfish with a subtriangular disc in outline, a strongly projecting, very broad and shelf-like rostrum, almost extending completely in front of the mouth as a bony pointed plate that extends forward and upwards, a very wide shallow illicial cavity that opens downward, and the 3-lobed esca completely visible from the underside.
Cite this page as:
Bray, D.J. 2022, Halieutopsis bathyoreos in Fishes of Australia, accessed 26 Apr 2024, https://fishesofaustralia.net.au/Home/species/5226
Broad-snout Deepsea Batfish, Halieutopsis bathyoreos Bradbury 1988
More Info
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Distribution |
Northwest Shelf, Western Australia, and off Newcastle, New South Wales, to east of Flinders Island, Tasmania; also SW of the Cocos (Keeling) Islands and off Christmas Island in the eastern Indian Ocean. Elsewhere the species is widespread in the Indo-west-central Pacific: off Madagascar, Tanzania, Papua New Guinea, New Caledonia, Vanuatu, Solomon Islands, New Zealand, Japan, and the central North Pacific off Hawaii. Depth range ~ 800-2000 m, mostly deeper than 1000 m. Inhabits deep waters on the continental slope waters, including seamounts, ridges and rises. |
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Features |
Dorsal fin 5; Anal fin 4; Pectoral fin 15; Vertebrae 19. Disc subtriangular in outline; illicial trough and esca fully visible in ventral view; tubercles on dorsal surface with 6-8 facets; rostrum very broad, shelf-like, extending anteriorly well beyond the mouth; a dorsal, relatively wide, leaf-shaped dorsal escal lobe slightly bisected ventrally; an illicial cavity completely square in outline and completely visible from the ventral view; tubercles absent on ventral surface of disk. Rostrum width 21-29% of head length; tubercles on the dorsal surface of the disk about half the diameter of those on the lateral margin; and, 13-15 large lateral-line scales on the tail. |
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Feeding |
Feeds on molluscs, polychaetes, small crustaceans and small fishes. |
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Similar Species |
Differs from other species in the genus Halieutopsis in having a shelf-like rostrum extending anteriorly well beyond the mouth, a dorsal escal lobe slightly bisected ventrally, an illicial cavity square in outline and completely visible in ventral view, and lacking tubercles on the ventral surface of the disc. |
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Etymology |
The specific name bathyoreos is from the Greek bathy (= deep) and oreos (= mountain), in reference to the deep-water seamount habitat of this species "announcing that this is a species of a deep mountain". |
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Species Citation |
Halieutopsis bathyoreos Bradbury 1988, Fieldiana Zoology (NS) 44: 18, Figs. 2, 3B, 6. Type locality: Central North Pacific [north of Johnston Atoll], 19°14.3'N, 169°07.3'W, depth 1500 m. |
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Author |
Bray, D.J. 2022 |
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Resources |
Broad-snout Deepsea Batfish, Halieutopsis bathyoreos Bradbury 1988
References
Bradbury, M.G. 1988. Rare fishes of the deep-sea genus Halieutopsis: a review with descriptions of four new species (Lophiiformes: Ogcocephalidae). Fieldiana Zoology 44: 1-22. See ref at BHL
Bradbury, M.G. 1999. Family Ogcocephalidae. pp. 2023-2025 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.
Ho, H.-C. 2015. 115 Family Ogcocephalidae, pp. 896-902 in Roberts, C.D., Stewart, A.L. & Struthers, C.D. (eds) The Fishes of New Zealand. Wellington : Te Papa Press Vol. 2 pp. 1-576.
Ho, H. 2020. Halieutopsis bathyoreos. The IUCN Red List of Threatened Species 2020: e.T140337799A140859612. https://dx.doi.org/10.2305/IUCN.UK.2020-1.RLTS.T140337799A140859612.en. Accessed on 10 January 2022.
Ho, H.-C. 2021. Taxonomy and distribution of the deep-sea batfish genus Halieutopsis (Teleostei: Ogcocephalidae), with descriptions of five new species. Journal of Marine Science and Engineering 10(1): 64 pp. https://doi.org/10.3390/jmse10010034
Ho, H.-C., Roberts, C.D. & Shao, K.-T. 2013. Revision of batfishes (Lophiiformes: Ogcocephalidae) of New Zealand and adjacent waters, with description of two new species of the genus Malthopsis. Zootaxa 3626(1): 188-200. https://doi.org/10.11646/zootaxa.3626.1.8
Shimazaki, M., Endo, H. & Yabe, M. 2004. Redescription of a rare deep-sea batfish, Halieutopsis bathyoreos (Lophiiformes: Ogcocephalidae). Ichthyological Research 51: 120-125. https://doi.org/10.1007/s10228-004-0204-z
