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Amazon pencil catfish (Ituglanis amazonicus) — Trichomycteridae

Amazon pencil catfish

Ituglanis amazonicus
LC · Least Concern

The Amazon pencil catfish (Ituglanis amazonicus) is a freshwater fish of the family Trichomycteridae that grows up to 8 cm.

Length
7.5 cm
Water
Freshwater
Diet
Carnivore
Behaviour
Solitary
Body shape
Elongated (eel-like)
Substrate
Mixed bottom
Danger
Harmless
Range
Small forest streams of the Amazon basin in South America.
Edibility
Not eaten

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Description

Ituglanis amazonicus is a small, slender pencil catfish of the family Trichomycteridae from the Amazon basin in South America. The species has a pencil-shaped, soft and scaleless body with barbels and reaches about 7 cm. It lives mainly in small forest creeks with noticeable current and a sandy-rocky bottom, where it hides among the substrate. On the gill cover it bears hooks (odontodes) with which it can cling to surfaces. It is unknown whether the species feeds on flesh or blood of living animals or lives on carrion. Owing to its secretive habits little is known about its biology.

Frequently asked questions

How do you recognise the Amazon pencil catfish?

The Amazon pencil catfish has an elongate, eel-like body, is mainly brown and shows a plain pattern. Pencil-shaped, scaleless body with opercular hooks to lock itself in place.

Where does the Amazon pencil catfish live?

The Amazon pencil catfish lives in fresh water and is mostly found around mixed bottom. Small forest streams of the Amazon basin in South America.

How big does the Amazon pencil catfish get?

The Amazon pencil catfish grows to a maximum of about 8 cm.

Is the Amazon pencil catfish dangerous to humans?

No, the Amazon pencil catfish is harmless to humans. This species is harmless to humans. No specific first aid is needed. Still handle the fish with care: mind the fin rays and the sharp edges of the gill cover, and rinse any scratch with clean water and cover it. For a dirty or deep wound check tetanus status.

Is the Amazon pencil catfish edible?

The Amazon pencil catfish is not usually eaten.

More photos

Amazon pencil catfish (Ituglanis amazonicus) — Trichomycteridae — 2
Wikimedia Commons — Dihon Leone Zdradek, Universidade Federal de Rondônia; Fabíola Silva Tomaz, Universidade Federal de Rondônia; Willian Massaharu Ohara, Universidade Federal do Amazonas. Instituto de Ciências Biológicas (CC BY 4.0)
Amazon pencil catfish (Ituglanis amazonicus) — Trichomycteridae — 3
Wikimedia Commons — AnonymousUnknown author (Public domain)
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All data

Identification

English name
Amazon pencil catfish sourced
Scientific name
Ituglanis amazonicus
Family
Trichomycteridae

Appearance

Size class
Small verified
Max length (cm)
7.5 verified
Body shape
Elongated (eel-like) sourced
Dominant colour
Brown inferred
Pattern
Plain inferred
Tail shape
Rounded inferred
Mouth position
Terminal inferred
Lips
Thin inferred
Barbels
Yes sourced
Dorsal fins
One continuous inferred
Dorsal spines
No sourced

Habitat & distribution

Water type
Freshwater sourced
Substrate
Mixed bottom sourced
Natural range
Small forest streams of the Amazon basin in South America. inferred
Origin
Native sourced

Behaviour & biology

Diet
Carnivore sourced
Diet (detail)
Probably small invertebrates or carrion sourced
Social behaviour
Solitary inferred
Territorial
No inferred
Reproduction
Separate sexes sourced
Sexual dimorphism
No inferred
Seasonality
Present year-round in its habitat; no pronounced seasonality known. inferred
Special features
Pencil-shaped, scaleless body with opercular hooks to lock itself in place. sourced

For anglers

Edibility
Not eaten sourced
Fishing method
Not a target species for angling; at most an incidental catch or usable as baitfish. inferred
Regulations source
FishBase ↗ inferred

Safety

Danger to humans
Harmless sourced
First aid
This species is harmless to humans. No specific first aid is needed. Still handle the fish with care: mind the fin rays and the sharp edges of the gill cover, and rinse any scratch with clean water and cover it. For a dirty or deep wound check tetanus status. verified

Status & sources

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

Same genus Ituglanis

More from the family Trichomycteridae

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