Aquarist Atlas
Barbs · Big barbs & mahseer

Semiplotus semiplotus

(McClelland, 1839)

Formerly known as Cyprinion semiplotum.

Full synonymy (3)
  • Cyprinion semiplotum (McClelland 1839) · earlier combination
  • Cyprinus semiplotus McClelland 1839 · original combination
  • Semiplotus macclellandi Bleeker 1860 · junior synonym

Source: Eschmeyer's Catalog of Fishes (Fricke, Eschmeyer & Van der Laan, eds.), California Academy of Sciences.

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

IUCNNOT EVALUATED
NEnot on the EX–LC scale
CARESNOT LISTED
Type localityBrahmaputra River rapids, Upper Assam, Indiaper Catalog of Fishes
Depth—not recorded
DietNot recorded
BreedingNot recorded
Sexual dimorphismNot documentedNot recorded in available sources
PhotographsSee photosGoogle Images →

Semiplotus semiplotus is a cyprinid of the Brahmaputra basin, described by McClelland in 1839 from the rapids of the Brahmaputra in Upper Assam. Stores have sold it under the name Cyprinion semiplotum, its original genus.

What's in the name

Semiplotus semiplotus — sem-ih-PLOH-tus

Semiplotus
  • semi-Latin — half
  • plotusGreek — swimming, floating
semiplotus
  • semiplotusNew Latin — repeats the genus name

Taxonomy & naming

McClelland described the species in 1839 as Cyprinion semiplotum from the rapids of the Brahmaputra River in Upper Assam, India. It is now placed in Semiplotus and the authority is in parentheses. Wet Spot sold it under the old combination Cyprinion semiplotum, which is an outdated name for this fish.

Morphology

The sources the atlas uses give no morphological description or size for the species.

Habitat

The type locality was in the Brahmaputra rapids in Upper Assam, India, which points to a fish of flowing river water in the Brahmaputra drainage. FishBase has no page for the species in the atlas cache, and habitat details are not recorded.

Feeding

The diet is not recorded in available sources.

Mating

Mating behaviour is not described.

Breeding

Breeding is not described.

In the aquarium

Aquarium requirements are not recorded. A fish from fast water needs a large tank with strong flow, cool to moderate temperatures and high oxygen.

Conservation

No IUCN assessment is known to the atlas.

Common questions

Semiplotus semiplotus: where does it come from?
It is recorded from India.

Also from the Brahmaputra basin

Sources

  1. FishBase — Semiplotus semiplotus
  2. Eschmeyer's Catalog of Fishes — Semiplotus semiplotus (McClelland, 1839)

Naming authority: Semiplotus semiplotus in Eschmeyer’s Catalog of Fishes ↗

Last reviewed 2026-10-05.

How to cite

Aquarist Atlas (2026). Semiplotus semiplotus. Aquarist Atlas.https://www.aquaristatlas.com/barbs/semiplotus-semiplotus/

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Where it has been recorded

18 georeferenced records (GBIF). Each point is a field observation or museum specimen — pan and zoom to explore where this species turns up. The coordinates come straight from GBIF and are often rounded or tied to the nearest town or river landing, so a dot can sit just beside the actual water rather than in it.

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