Brilliant Pearlside, Argyripnus iridescens McCulloch 1926


Other Names: Pearlyside Lightfish

Brilliant Pearlside, Argyripnus iridescens. Source: Australian National Fish Collection, CSIRO. License: CC BY Attribution-Noncommercial

Summary:
A silvery pearlside with the light organs surrounded in black pigment, a large black patch behind the upper part of the head, a smaller, fainter black patch on the caudal peduncle, and blackish tips on the dorsal-fin rays.

Cite this page as:
Bray, D.J. 2021, Argyripnus iridescens in Fishes of Australia, accessed 03 Jul 2022, https://fishesofaustralia.net.au/Home/species/3937

Brilliant Pearlside, Argyripnus iridescens McCulloch 1926

More Info


Distribution

Off Southern Queensland, to the North West Shelf, Western Australia, excluding Victoria and Tasmania. Elsewhere the species occurs on the Norfolk Ridge, New Zealand. 

Features

Dorsal fin 11-13; Anal fin 23-25; Caudal fin 17; Pectoral fin 16-17; Pelvic fin 7; Vertebrae 45-46; Gill rakers 20-22.  
Body of moderate depth (26-29% SL), compressed;no spinous projections on back in front of dorsal fin. Head of moderate size (29-35% SL); eyes large (approx. 44% HL); mouth large, nearly horizontal, extending to hind border of eye; jaw teeth small, needle-like, in single row; small teeth on either side of vomer and on palatines; prominent patch of spines on either side of nape at back of head. Scales cycloid, weakly attached.  
Light organs in ventral row anteriorly and broken lateral row posteriorly, 12-14 behind anal fin.  
Dorsal fin short, positioned at middle of body; adipose fin small, behind rayed dorsal; anal fin long, positioned in posterior half of body, anterior rays much longer than posterior rays; caudal fin forked. Pectoral fins of moderate size, low on body. Pelvic fins short, inserted under dorsal fin. 

Etymology

The specific name is from the Latin iris (= rainbow) and -escent (= resembling), in reference to the iridescent rainbow-lik colours (on a black background) on parts of the head and anterior body.

Species Citation

Argyripnus iridescens McCulloch 1926, Biol. Res. Endeavour 5(4): 169, pl. 45, fig. 2. Type locality: Great Australian Bight south of Eucla, Western Australia; depth 350-450 fathoms.

Author

Bray, D.J. 2021

Resources

Atlas of Living Australia

Brilliant Pearlside, Argyripnus iridescens McCulloch 1926

References


Harold, A. 2020. Argyripnus iridescens. The IUCN Red List of Threatened Species 2020: e.T137464293A137467478. https://dx.doi.org/10.2305/IUCN.UK.2020-1.RLTS.T137464293A137467478.en. Downloaded on 19 November 2021.

Harold, A.S. & Gomon, M.F. 2008. Various family accounts. pp. 225 in Gomon, M.F., Bray, D.J. & Kuiter, R.H. (eds). Fishes of Australia's Southern Coast. Sydney : Reed New Holland 928 pp.


Harold, A.S., Stewart, A.L. & Roberts, C.D. 2015. Family Sternoptychidae. pp. 446-468 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.

McCulloch, A.R. 1926. Report on some fishes obtained by the F.I.S. Endeavour on the coasts of Queensland, New South Wales, Victoria, Tasmania, South and South-Western Australia. Part 5. Biological Results of the Fishing Experiments carried on by the F.I.S. Endeavour 1909-1914 5(4): 157-216 figs 1-5 pls 43-56

Paxton, J.R. 1994. Families Gonostomatidae, Photichthyidae, Sternoptychidae. pp. 246-251 figs 221-224 in Gomon, M.F., Glover, C.J.M. & Kuiter, R.H. (eds). The Fishes of Australia's South Coast. Adelaide : State Printer 992 pp. 810 figs.

Struhsaker, P.J. 1973. Argyripnus brocki, a new species of stomiatoid fish from Hawaii, with observations on A. ephippiatus and A. iridescens. United States National Marine Fisheries Service Fishery Bulletin 71(3): 827-836. See ref at BHL

Quick Facts


CAAB Code:37107004

Biology:Bioluminescent

Conservation:IUCN Least Concern

Depth:180-800 m

Habitat:Benthopelagic

Max Size:14 cm TL

Species Image Gallery

Species Maps

CAAB distribution map