Classification / Names
Common names | Synonyms | Catalog of Fishes(genus, species) | ITIS | CoL | WoRMS | Cloffa
Teleostei (teleosts) >
Beloniformes (Needle fishes) >
Adrianichthyidae (Ricefishes) > Oryziinae
Etymology: Oryzias: Greek, oryza = rice; because of the habitat used by this fish (Ref. 45335); polylepis: Name from Greek words 'polus' and 'lepis', meaning 'many' and 'scale', referring to the species' small and plentiful scales.
Environment: milieu / climate zone / depth range / distribution range
Ecology
Freshwater; benthopelagic; depth range ? - 752 m (Ref. 133026). Tropical
Westerm Central Pacific: Indonesia.
Size / Weight / Age
Maturity: Lm ? range ? - ? cm
Max length : 5.3 cm SL male/unsexed; (Ref. 133026)
Short description
Identification keys | Morphology | Morphometrics
Dorsal soft rays (total): 11 - 13; Anal soft rays: 19 - 23. This species is distinguished from its congeners by the following set of characters: high number of scales in the lateral series 79-93; substantially smaller adult standard length 52 mm and shorter snout 6.8 with superior and small mouth; dorsal fin rays 11-13; anal fin rays 19-23; pectoral fin rays 11-14; fewer principal caudal-fin rays i,4/5,i; shorter head 23.1-26.4 and larger eyes relative to head length 32.6-40.7; possess deeper bodies 15.2-21.4; truncate or round instead of lunate caudal-fin edge; greater predorsal length 67.2-70.6; presence of a broad reflective silver lateral band extending from the pectoral fin to the end of the caudal peduncle; presence of a series of dark blotches along the lateral line in males (Ref. 133026).
Cross section: compressed.
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Möhring, J., D.F. Mokodongan, A. Gani, D. Wowor, Annawaty and A., Herder, F. Böhne, 2025. A new and unique species of Ricefish (Teleostei: Adrianichthyidae: Oryzias) from the Lariang River Basin, Sulawesi, Indonesia, and the first known sympatric Ricefish species pair from Sulawesi Rivers. Ichthyology & Herpetology 113(1):61-74. (Ref. 133026)
IUCN Red List Status (Ref. 130435: Version 2025-1)
Threat to humans
Harmless
Human uses
Fisheries: of no interest
Tools
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Internet sources
Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Trophic level (Ref.
69278): 3.5 ±0.5 se; based on size and trophs of closest relatives
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
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