Common Wolffish
Hoplias malabaricus
Common Wolffish (Hoplias malabaricus) is a South American freshwater predatory fish often called wolf fish or trahira. It lurks in still or slow waters, striking ambush prey with heavy jaws and sharp teeth.
Identification points
- Elongate, cylindrical body with a broad, flattened head
- Large mouth with prominent canine-like teeth and a lower jaw that juts forward
- Dark blotches or mottling on the body, often on an olive-brown background
Habitat
Warm freshwater habitats in lowland rivers, floodplains, lakes, backwaters, swamps, and vegetated margins; commonly in shallow, slow-moving or still water with cover.
Bait notes
Dead or live baitfish, worms, shrimp, and frogs can work; anglers also use small spoons, soft plastics, and shallow-diving lures fished near cover. Fresh bait and a natural presentation are often best.
Behavior
A nocturnal ambush predator that lies buried or hidden among plants and debris, then lunges at fish, crustaceans, and amphibians. It can breathe air and survive low-oxygen water.
Caution
Its mouth has sharp teeth that can cut hands; use pliers and handle carefully. In some areas it is invasive or regulated, so check local rules before targeting or transporting it.
Fishing notes
Fish slow and close to structure, lily pads, submerged wood, and weed edges, especially at dusk or night. Use heavy leaders and strong hooks, as this species has a powerful strike and abrasive mouth.