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Actinopterygii (ray-finned fishes) > Pleuronectiformes (Flatfishes) > Soleidae (Soles)
Etymology: Leptachirus: Name from the Greek 'leptos' meaning thin and the soleid genus Achirus Lacepède, in reference to the very thin and slender body of the species.; alleni: Named for Gerald R. Allen.. More on author: Randall.

Environment / Climate / Range Ecology

Freshwater; benthopelagic; depth range 0 - 1 m (Ref. 84817). Tropical, preferred ?

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Asia: New Guinea, Indonesia.

Size / Weight / Age

Maturity: L_m ? range ? - ? cm
Max length : 8.6 cm SL male/unsexed; (Ref. 84817)

Short description Morphology | Morphometrics

Dorsal soft rays (total): 65-73; Anal soft rays: 50 - 53; Vertebrae: 37 - 39. This species is distinguished by the following characters: D 65-73; A 50-53; pelvic rays 4; lateral-line scales 82-93; lateral line on ocular side of head with a ventral branch of 4-6 pores, remaining horizontal anterior part with 5-7 pores; vertebrae 37-39; dorsal pterygiophores anterior to fourth neural spine 8-9; body depth 2.7-3.0 in SL; no caudal peduncle; head length 4.35-4.65 in SL; small eyes, eye diameter 7.2-8.4 in HL; interorbital width 8.1-9.8 in HL; longest dorsal ray 1.75-1.95 in HL; caudal-fin length 4.0-4.25 in SL; pelvic fins and genital papilla not joined, their origins adjacent; short pelvic fins, reaching little beyond base of first anal ray, 2.8-3.2 in HL; alcohol-preserved colour of ocular side grey-brown with scattered dark brown spots smaller than eye (most of about pupil size) and 3 longitudinal rows of larger dark brown blotches; pale dorsal and anal fin rays with membranes dark brown (except anteriorly, where pale); caudal fin with pale rays and brown membranes with darker brown spots or longitudinal streaks; caudal-fin base with dark brown bar or row of dark spots (Ref. 84817).

Specimens collected from a small turbid creek with a salinity of 10 ppt, about 19 km upstream from Bintuni Bay. The area receives semidiurnal tides averaging about 3.5 m and the mangrove-nipa zone of this creek is thus subjected to large fluctuations in salinity and turbidity (Ref. 84817).

Life cycle and mating behavior Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae

Main reference Upload your references | References | Coordinator | Collaborators

Randall, J.E., 2007. Leptachirus, a new soleid fish genus from New Guinea and northern Australia, with descriptions of eight new species. Records of the Western Australian Museum 24:81-108. (Ref. 84817)

IUCN Red List Status (Ref. 115185)

Not Evaluated

CITES (Ref. 94142)

Not Evaluated

Threat to humans

Harmless

Human uses

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Internet sources

Leptachirus alleni Randall, 2007