WHATSTHATFISH
Bony fish

Smallmouth Threadfin

Polydactylus microstoma

Also known as: Blackspot Threadfin, Slender Five-finger Threadfin, Small-mouthed Threadfin, Striped Threadfin, Tasselfish, Threadfish, Polydactylus microstomus

Adult
@lutfimuslim · Malaysia · October 20121 / 1
01

Overview

Found singly or in small schools, in murky churned waters of coastal estuaries, mangrove creeks and rivers. These fish have extended rays on their Pectoral fins which act like fingers which they use for scouring mud and sand bottoms for food.

Because Threadfins stir up the sand with their extended rays they are often followed by other fish to share in their scraps, also being a schooling fish they are popular with anglers.

02

How to identify

Pattern
black spot
Fins & Tail
yellow fins

Tap any trait to see other fish that share it.

03

Habitat & where to find it

  • Range · Eastern Indian Ocean, Western Pacific
  • Exact location · 1
LIVES IN

Found singly or in small schools, in murky churned waters of coastal estuaries, mangrove creeks and rivers.

04

Adult photos 1

05

Discussion

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    ALL STAGES
    FOR THE MARINE-BIOLOGY CURIOUS

    Deep dive

    Taxonomy

    1. kingdomAnimalia
    2. phylumChordata
    3. classTeleostei
    4. orderCarangaria incertae sedis
    5. familyPolynemidae
    6. genusPolydactylus
    7. speciesPolydactylus microstoma (Bleeker, 1851)

    SourcesWoRMSFishBase

    06

    More in the family

    Carangaria incertae sedis