Oddballs & Brackish · Freshwater pipefish · Microphis

Microphis deocata

(Hamilton, 1822)

Deocata pipefish

Formerly known as Syngnathus deocata.

Full synonymy (1)
  • Syngnathus deocata Hamilton 1822 · original combination

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

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

IUCNNEAR THREATENED · 2016
CARESNOT LISTED
Type localityBaruni, Ganges River sytem, Indiaper Catalog of Fishes
Scientific size6 in15 cm standard length
Depth—not recorded
DietNot documented for this species; freshwater pipefishes take small live crustaceans and larvae
BreedingMale brood pouch; the male carries the eggs under the tail
Sexual dimorphismNot documentedNot documented for this species
PhotographsSee photosGoogle Images →

Microphis deocata is a freshwater pipefish of the Ganges and neighbouring rivers of India and Bangladesh. Hamilton described it in 1822 as Syngnathus deocata, and FishBase gives a maximum of 6 in SL. The IUCN rates it Near Threatened.

What's in the name

Microphis
  • mikrosGreek — small
  • ophisGreek — snake
deocata

Taxonomy & naming

Microphis deocata was described by Hamilton in 1822 in the genus Syngnathus, from Baruni in the Ganges River system, India. The parentheses around the authority record that it has since been moved to Microphis. It belongs to Syngnathidae, the pipefishes and seahorses.

Morphology

FishBase gives a maximum of 6 in SL. Like other pipefishes it has a long, slender body encased in bony rings, a tubular snout and no pelvic fins.

Habitat

FishBase classes it as freshwater, demersal and amphidromous, meaning individuals move between fresh and salt water during their life cycle. It is found in rivers, streams and lakes among aquatic plants, in India and Bangladesh.

Feeding

Diet is not recorded in the FishBase entry. Pipefishes suck in small crustaceans and other tiny live animals through the tubular mouth.

Mating

Courtship has not been described beyond the male brooding recorded under breeding.

Breeding

FishBase records that the male carries the eggs in a brood pouch found under the tail, and lists the species as ovoviviparous. Brood size and development time are not recorded.

In the aquarium

Freshwater pipefishes are specialist feeders that usually need live foods such as baby brine shrimp and small crustaceans. Because the species is amphidromous, young fish may need brackish water to develop. Husbandry for this particular species is not documented, and temperature, pH and hardness are not recorded.

Conservation

The IUCN Red List assessed Microphis deocata as Near Threatened in 2016.

Common questions

Deocata pipefish (Microphis deocata): how big does it get?
Up to 6 in standard length (SL).
Deocata pipefish (Microphis deocata): where does it come from?
It is recorded from India and Bangladesh.

Also from the Ganges River system

Sources

  1. FishBase — Microphis deocata (Hamilton, 1822)
  2. Eschmeyer's Catalog of Fishes (California Academy of Sciences) — Microphis deocata
  3. IUCN Red List — Microphis deocata

Last reviewed 2026-10-05.

How to cite

Aquarist Atlas (2026). Microphis deocata. Aquarist Atlas.https://www.aquaristatlas.com/oddballs/microphis-deocata/

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Where it has been recorded

11 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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