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Waimacu killi (Anablepsoides waimacui) — Rivulidae

Waimacu killi

Anablepsoides waimacui
Family: Rivulidae

The Waimacu killi (Anablepsoides waimacui) is a freshwater fish of the family Rivulidae that grows up to 9 cm.

Length
8.5 cm
Water
Freshwater
Diet
Carnivore
Body shape
Elongated (eel-like)
Substrate
Open water
Danger
Harmless
Range
South America: Guyana

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Description

The Waimacu killi is a small egg-laying killifish (Rivulidae) from shallow, slow-flowing fresh water of the Essequibo basin in Guyana. The species has a slender, elongate body; males are brown with red spots and blue fin margins, females plainer. As a surface fish it lives among floating plants and leaf litter of streams and pools and snaps at small invertebrates and insect larvae. The fish is harmless to humans.

Frequently asked questions

How do you recognise the Waimacu killi?

The Waimacu killi has an elongate, eel-like body and is mainly brown.

Where does the Waimacu killi live?

The Waimacu killi lives in fresh water and is mostly found around open water. South America: Guyana

How big does the Waimacu killi get?

The Waimacu killi grows to a maximum of about 9 cm.

Is the Waimacu killi dangerous to humans?

No, the Waimacu killi 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.

More photos

Waimacu killi (Anablepsoides waimacui) — Rivulidae — 2
Wikimedia Commons — Jonathan (Jon) Armbruster (CC BY-SA 2.0)
Waimacu killi (Anablepsoides waimacui) — Rivulidae — 3
iNaturalist ((c) penterd, some rights reserved (CC BY-NC))
Waimacu killi (Anablepsoides waimacui) — Rivulidae — 4
© President and Fellows of Harvard College (CC BY-NC 4.0) via GBIF — MCZ

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All data

Identification

English name
Waimacu killi sourced
Scientific name
Anablepsoides waimacui
Family
Rivulidae

Appearance

Size class
Small verified
Max length (cm)
8.5 verified
Body shape
Elongated (eel-like) sourced
Dominant colour
Brown sourced
Tail shape
Rounded

Habitat & distribution

Water type
Freshwater sourced
Substrate
Open water sourced
Natural range
South America: Guyana sourced
Origin
Native

Behaviour & biology

Diet
Carnivore
Diet (detail)
Small fishes, crustaceans and invertebrates
Territorial
No
Reproduction
Separate sexes
Sexual dimorphism
Yes sourced
Seasonality
Present year-round in its habitat; no pronounced seasonality known.

For anglers

Fishing method
Small in size and barely an angling target; mostly caught incidentally or as baitfish.
Regulations source

Safety

Danger to humans
Harmless verified
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 Anablepsoides

More from the family Rivulidae

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