Bigsnout Whiptail, Coelorinchus macrorhynchus Smith & Radcliffe 1912

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Bray, D.J. & G. Frankham, Coelorinchus macrorhynchus in Fishes of Australia, accessed 13 Oct 2024, https://fishesofaustralia.net.au/Home/species/3614

Bigsnout Whiptail, Coelorinchus macrorhynchus Smith & Radcliffe 1912

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Distribution	Tropical eastern Indian Ocean and Western Central Pacific off the Philippines, Borneo and Australia; bathydemersal on the continental slope at 329-759 m.
Features	D II, 8-9; P i16-19; V 7; GR (inner) 8-10; BR 6; PC Snout long, about half head length, slender, pointed; diamond-shaped scute at tip, anterolateral margins completely supported by bone. Upper jaw teeth in a broad band, no teeth enlarged; lower jaw teeth in long narrow band; chin barbel small, slender. Scales on snout with few relatively broad-bladed, adnate spinules in one or few serrated, crest like rows, underside of head uniformly scaled except for a narrow margin above upper jaws, nasal fossa with small scales except immediately anterior to nostrils. Body scales with 5-4 divergent rows of broad-based overlapping spinules. Fins lacking any notably produced rays; first and second dorsal fins low, latter inconspicuous over most of length, somewhat higher posteriorly. Anus immediately before anal-fin origin; light organ very short, externally visible as a black streak extending forward from anus to about midway to pelvic-fin bases.
Size	A relatively large species reaching a total length of more than 44 cm.
Colour	Overall swarthy to black; fins, mouth, and gill cavities blackish; gums, gill arches, and rakers dark or blackish, peritoneum black; most of the spinules of head and body scales black.
Biology	Unknown.
Fisheries	Of no commercial imortance.
Conservation	Not assessed.
Species Citation	Coelorhynchus macrorhynyhus Smith & Radcliffe in Radcliffe, 1912, Proc. U.S. Natl. Mus. 43(1924): 127, pl. 29(1), Verde Island Passage, Luzon, Philippines.
Author	Bray, D.J. & G. Frankham

Bigsnout Whiptail, Coelorinchus macrorhynchus Smith & Radcliffe 1912

References

Bray, D.J., D.F. Hoese, J.R. Paxton & J.E. Gates. 2006. Macrouridae (pp. 581-607). In Hoese, D.F., D.J. Bray, G.R. Allen, J.R. Paxton, P.L. Beesley & A. Wells (Eds.) Zoological Catalogue of Australia. Volume 35. Fishes. CSIRO Publishing & the Australian Biological Resources Study (ABRS), 3 vols., 2248 pp.

Iwamoto, T. 1999. Order Gadiformes. In Carpenter, K.E. & V.H. Niem. Species identification guide for fisheries purposes. The living marine resources of the western central Pacific. Batoid fishes, chimeras and bony fishes part 1 (Elopidae to Linophrynidae). FAO, Rome.

Iwamoto, T. & Graham, K.J. 2001. Grenadiers (Families Bathygadidae and Macrouridae, Gadiformes, Pisces) of New South Wales, Australia. Proc. Calif. Acad. Sci. 52(21): 407-509, figs. 1-114.

Iwamoto, T. & Williams, A. 1999. Grenadiers (Pisces, Gadiformes) from the continentalslope of western and northwestern Australia. Proc. Calif. Acad. Sci. 51(3): 105-243, figs. 1-58.