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Slender headstander (Pseudanos gracilis) — Anostomidae

Slender headstander

Pseudanos gracilis
Family: Anostomidae

The Slender headstander (Pseudanos gracilis) is a freshwater fish of the family Anostomidae that grows up to 18 cm.

Length
18.1 cm
Water
Freshwater
Depth
0.0–1.0 m
Body shape
Torpedo-shaped
Substrate
Open water
Danger
Harmless
Edibility
Commonly eaten

Description

The Slender headstander is a headstander (Anostomidae) from rivers and streams of the Amazon and Orinoco basins in South America. The species grows to about 12 cm and has a slender, elongate, silver-brown body with dark bands and a small, inferior mouth; it often swims obliquely head-down. As a bottom-oriented fish it picks among stones and plants for algae, insect larvae, seeds and small invertebrates. The fish is harmless to humans.

Frequently asked questions

How do you recognise the Slender headstander?

The Slender headstander has a torpedo-shaped body and is mainly silver-grey.

Where does the Slender headstander live?

The Slender headstander lives in fresh water and is mostly found around open water.

How big does the Slender headstander get?

The Slender headstander grows to a maximum of about 18 cm. On average the species is around 14 cm.

Is the Slender headstander dangerous to humans?

No, the Slender headstander is harmless to humans.

Is the Slender headstander edible?

Yes, the Slender headstander is commonly eaten.

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All data

Identification

Dutch name
Slanke kopstaander sourced
English name
Slender headstander sourced
Scientific name
Pseudanos gracilis
Family
Anostomidae

Appearance

Size class
Medium verified
Max length (cm)
18.1 verified
Average length (cm)
14.0 verified
Body shape
Torpedo-shaped sourced
Dominant colour
Silver / grey sourced
Tail shape
Forked inferred
Mouth position
Inferior (downward) sourced

Habitat & distribution

Water type
Freshwater sourced
Substrate
Open water sourced
Min depth (m)
0.0 verified
Max depth (m)
1.0 verified
Origin
Native inferred

Behaviour & biology

Territorial
No inferred
Reproduction
Separate sexes inferred
Sexual dimorphism
No inferred

For anglers

Edibility
Commonly eaten inferred
Fishing method
Te vangen met natuurlijk aas of kunstaas, afgestemd op de grootte en het leefgebied van de soort. inferred
Regulations source
FishBase ↗ inferred

Safety

Danger to humans
Harmless verified

Status & sources

Sources
FishBase via GBIF (DwC-A), CC-BY-NC 4.0

Same genus Pseudanos

More from the family Anostomidae

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