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Bottle toothcarp (Tomeurus gracilis) — Poeciliidae

Bottle toothcarp

Tomeurus gracilis
Family: Poeciliidae
LC · Least Concern

The Bottle toothcarp (Tomeurus gracilis) is a freshwater fish of the family Poeciliidae that grows up to 3 cm.

Length
3.3 cm
Water
Freshwater
Diet
Carnivore
Behaviour
Large groups
Activity
Diurnal
Body shape
Elongated (eel-like)
Substrate
Open water
Danger
Harmless
Edibility
Not eaten

Description

The tomeurus is a small livebearer-relative of the family Poeciliidae from northern South America. The species is notable because, unlike most poeciliids, it lays internally fertilised eggs: the male transfers sperm with his gonopodium, but the female then deposits separate, fertilised eggs. It lives in schools of several dozen individuals in muddy creeks and along the sandy-muddy edges of shallow estuaries, where it sometimes hangs motionless at the surface. It feeds on small plankton and invertebrates. The species is harmless to humans.

Frequently asked questions

How do you recognise the Bottle toothcarp?

The Bottle toothcarp has an elongate, eel-like body, is mainly silver-grey and shows a plain pattern.

Where does the Bottle toothcarp live?

The Bottle toothcarp lives in fresh water and is mostly found around open water.

How big does the Bottle toothcarp get?

The Bottle toothcarp grows to a maximum of about 3 cm.

Is the Bottle toothcarp dangerous to humans?

No, the Bottle toothcarp is harmless to humans.

Is the Bottle toothcarp edible?

The Bottle toothcarp is not usually eaten.

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All data

Identification

Dutch name
Slanke tomeurus sourced
English name
Bottle toothcarp verified
Scientific name
Tomeurus gracilis
Family
Poeciliidae
Other names
Guppy verified

Appearance

Size class
Small verified
Max length (cm)
3.3 verified
Body shape
Elongated (eel-like) sourced
Dominant colour
Silver / grey inferred
Pattern
Plain inferred
Tail shape
Rounded inferred
Mouth position
Superior (upward) inferred
Lips
Thin inferred
Barbels
No sourced
Dorsal fins
One continuous inferred
Dorsal spines
No sourced

Habitat & distribution

Water type
Freshwater sourced
Substrate
Open water sourced
Origin
Native sourced

Behaviour & biology

Diet
Carnivore sourced
Social behaviour
Large groups inferred
Territorial
No inferred
Activity
Diurnal inferred
Reproduction
Separate sexes sourced
Sexual dimorphism
Yes inferred

For anglers

Edibility
Not eaten sourced
Fishing method
Geen doelsoort voor de hengelsport; hooguit incidentele vangst of bruikbaar als aasvisje. inferred
Regulations source
FishBase ↗ inferred

Safety

Danger to humans
Harmless sourced

Status & sources

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

More from the family Poeciliidae

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