Aquarist Atlas
Ricefish · Mainland South & Southeast Asian ricefish · Oryzias

Oryzias andrewi

Roberts, Chakraborty, Yardi & Mukherjee, 2021

2 cited sourcesName checked against Eschmeyer’s Catalog of Fishes, update of

IUCNNOT EVALUATED
NEnot on the EX–LC scale
CARESNOT LISTED
Type localitySutinmari River, Sankosh River drainage, Alipurduar District near Barobisha Town, Brahmaputra River basin, Assam, India, 26°29'24"N, 89°46'16"E, elevation 63 metersper Catalog of Fishes
Depth—not recorded
DietNot documented for this species; ricefishes in general take small invertebrates and algae at or near the surface
BreedingNot documented for this species
Sexual dimorphismNot documentedNot documented for this species
PhotographsSee photosGoogle Images →

Oryzias andrewi is a ricefish described in 2021 from the Brahmaputra basin in Assam, India. It is one of several recent descriptions that have separated forms long grouped under Oryzias carnaticus or O. dancena.

Taxonomy & naming

Roberts, Chakraborty, Yardi and Mukherjee described the species in 2021 from the Sutinmari River, a tributary system of the Sankosh drainage in the Brahmaputra basin. It belongs to Oryzias in the sense used in recent Indian literature.

Morphology

A small ricefish; no maximum size is recorded here.

Habitat

The type locality is the Sutinmari River near Barobisha, Alipurduar District, at about 207 ft elevation. The species is known from this part of the Brahmaputra drainage in northeastern India.

Feeding

Diet is not documented.

Mating

Courtship has not been described.

Breeding

Breeding has not been documented.

In the aquarium

Not known in the trade or in aquarium culture.

Conservation

No IUCN assessment is on record for this recently described species.

Common questions

Oryzias andrewi: where does it come from?
It is recorded from India.

Related species compared · Oryzias

SpeciesAdult sizeTemperaturepHHardnessIUCN
Oryzias andrewithis species————NE
Oryzias asinua1 in SL———EN
Oryzias bonneorum————NE
Oryzias cabaranensis1.5 in SL———NE
Indian ricefishOryzias carnaticus1 in SL———LC
Celebes medakaOryzias celebensis2 in TL72–86 °FpH 8–9—LC
Oryzias chenglongensis1 in SL———NE
Hainan medakaOryzias curvinotus1.5 in TL———DD
Indian medakaOryzias dancena1 in SL———LC
Oryzias dopingdopingensis1.5 in SL———NE
Evers' ricefishOryzias eversi1.5 in SL———NT
Masapi ricefishOryzias hadiatyae1.5 in SL———VU

Recorded ranges from each species’ own page; hardness is the tolerance its sources give, not a measurement of the water it lives in. See all 40 Oryzias species →

Also from the Brahmaputra basin

Sources

  1. FishBase — Oryzias andrewi Roberts, Chakraborty, Yardi & Mukherjee, 2021
  2. Eschmeyer's Catalog of Fishes (California Academy of Sciences) — Oryzias andrewi
  3. Parenti, L.R. (2008) A phylogenetic analysis and taxonomic revision of ricefishes, Oryzias and relatives (Beloniformes, Adrianichthyidae). Zoological Journal of the Linnean Society 154: 494-610

Naming authority: Oryzias andrewi in Eschmeyer’s Catalog of Fishes ↗

Last reviewed 2026-10-05.

How to cite

Aquarist Atlas (2026). Oryzias andrewi. Aquarist Atlas.https://www.aquaristatlas.com/ricefish/oryzias-andrewi/

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