Fin's Fish Guide
The Giant killifish (Fundulus grandissimus) is a freshwater fish of the family Fundulidae that grows up to 20 cm.
Description
The giant killifish is a large killifish endemic to fresh and brackish water of the Yucatan Peninsula in Mexico. The species grows to about 20 cm, making it one of the largest killifishes; it has a stocky, silvery body. Unlike many relatives this is not a seasonal killifish. It lives in coastal lagoons, pools and cenotes and feeds on small invertebrates and plant matter. Owing to its restricted range it is listed as Vulnerable (VU) on the IUCN Red List.
Frequently asked questions
How do you recognise the Giant killifish?
The Giant killifish has an elongate, eel-like body, is mainly silver-grey and shows a plain pattern. One of the largest killifishes; endemic to Yucatan
Where does the Giant killifish live?
The Giant killifish lives in fresh water and is mostly found around mixed bottom. Yucatan (Mexico)
How big does the Giant killifish get?
The Giant killifish grows to a maximum of about 20 cm.
Is the Giant killifish dangerous to humans?
No, the Giant killifish 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 Giant killifish edible?
The Giant killifish is rarely eaten.
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All data
Identification
Appearance
Habitat & distribution
Behaviour & biology
For anglers
Safety
Status & sources
Same genus Fundulus
More from the family Fundulidae
Want the complete picture on the Giant killifish?
Point your camera at the fish and Fin names the species in seconds. Free, and the Giant killifish is one of 12,519 species in the app.