Staring Pearleye, Scopelarchus guentheri Alcock 1896

Illustration of a Staring Pearleye, Scopelarchus guentheri. Source: Fig. 53, in Johnson (1974) Fieldiana Zoology 66: i-ix + 1-249 / Biodiversity Heritage Library. License: CC BY Attribution

A pearleye with pigment on the body limited to dark stripes above and below the lateral line.

Cite this page as:
Bray, D.J. 2018, Scopelarchus guentheri in Fishes of Australia, accessed 24 Mar 2023,

Staring Pearleye, Scopelarchus guentheri Alcock 1896

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Off central Western Australia, and in the Coral Sea, off Queensland. Elsewhere the species occurs in tropical and subtropical waters worldwide. Undertakes vertical migrations at night.


Dorsal fin 7-8; Anal fin 24-28; Pectoral fin 8-22; Lateral line scales 47-51; Vertebrae 46-52; Branchiostegal rays 8. 


Scopelarchids are synchronous hermaphrodites with an ovotestis containing functional male and female reproductive tissue.

Species Citation

Scopelarchus guentheri Alcock 1896, J. Asiatic Soc. Bengal 65(2,3): 307. Type locality: off India [22°14´N, 67°09´E]


Bray, D.J. 2018


Australian Faunal Directory

Staring Pearleye, Scopelarchus guentheri Alcock 1896


Alcock, A.W. 1896. Natural history notes from H.M. Indian marine survey steamer Investigator, Series 2(2). A supplemental list of the marine fishes of India with descriptions of two new genera and eight new species. Journal of the Asiatic Society of Bengal 65(2,3): 301-338 Ref at BHL

Alcock, A.W. 1897. Illustrations of the zoology of the Royal Indian marine surveying steamer Investigator,...Fishes. Calcutta. Part 4: no. p., Pl. 17. Ref at BHL

Bannermann, P., Nunoo, F., Poss, S. & Russell, B. 2015. Scopelarchus guentheri. The IUCN Red List of Threatened Species 2015: e.T13485856A15603280. Downloaded on 23 May 2018.

Davis, M.P. 2015. Evolutionary relationships of the deep-sea pearleyes (Aulopiformes: Scopelarchidae) and a new genus of pearleye from Antarctic waters. Copeia 103(1): 64-71. Abstract 
Post, A. 1990. Scopelarchidae, Pearl eyes, pp. 134-135, in Gon, O. & Heemstra, P.C. (eds) Fishes of the Southern Ocean. Grahamstown : J.L.B. Smith Institute of Ichthyology 462 pp. Ref at BHL

Johnson, R.K. 1974. A revision of the alepisauroid family Scopelarchidae (Pisces: Myctophiformes). Fieldiana Zoology 66: i-ix + 1-249. Ref at BHL

Johnson, R.K. 1982. Fishes of the families Evermannellidae and Scopelarchidae: systematics, morphology, interrelationships and zoogeography. Fieldiana Zoology ns 12: 1-252 figs 1-74 Ref at BHL

Johnson, R.K. 1986. Family No. 77: Scopelarchidae. pp. 265-267 in Smith, M.M. & Heemstra, P.C. (eds). Smith's Sea Fishes. Johannesburg : Macmillan South Africa xx + 1047 pp. 144 pls.

Watson, W. & Sandknop, E.M. 1996. Scopelarchidae: pearleyes. pp. 332-343. In Moser, H.G. 1996. The early stages of fishes in the California Current region. Fisheries Investigations Atlas No. 33. Lawrence, Kansas : California Cooperative Oceanic Allen Press, Inc. 1505 pp.

Quick Facts

CAAB Code:37131005


Conservation:IUCN Least Concern

Habitat:Mesopelagic, oceanic

Max Size:12 cm SL

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