Types of snake-eaters

Polemon is a genus of small to medium African snakes in the family Atractaspididae, the same family that includes the burrowing asps and stiletto snakes. They are commonly called snake-eaters, a name that points directly to their feeding habits. The genus is found across sub-Saharan Africa, with members spread through West, Central, and parts of East Africa.

These snakes are built for a life spent largely underground and in leaf litter. They tend to have smooth, glossy scales, cylindrical bodies, and small heads that are not sharply distinct from the neck, which is a typical pattern among burrowing snakes. Coloration is usually dark and fairly plain, often blackish or brown, sometimes with a pale collar or banding in certain species. Their semi-fossorial design makes them hard to spot, and they are most often encountered in moist forest and savanna habitats where the soil and litter stay damp.

As their common name suggests, Polemon feed heavily on other elongate reptiles, especially other snakes and legless or burrowing lizards. This diet of slender, hard-to-subdue prey is part of why the genus is grouped within Atractaspididae, a family known for rear-positioned venom delivery and specialized feeding on prey encountered in tight underground spaces. Like many family members, they are believed to be egg-laying, though detailed life history information is limited for several of the more obscure species.

On the venom question, honesty matters. Members of Atractaspididae are venomous and rear-fanged, and Polemon should be treated as a potentially venomous, mildly understood group rather than as harmless. Their venom appears adapted to overpowering reptile prey, and they are not considered a major medical threat to people in the way that cobras or vipers are. That is not a license to handle them. The effects of a bite from many of these obscure burrowing snakes are poorly documented, so the safe assumption is to leave any wild snake alone.

If you encounter a Polemon or any snake-eater in the field, observe it from a distance and let it move on. Do not attempt to pick it up, restrain it, or identify it by handling. If a bite occurs from any snake you cannot confidently identify as harmless, treat it as a medical situation, stay calm, keep the bitten area still, and seek care immediately. In the United States contact Poison Control at 1-800-222-1222 or call local emergency services; outside the US use your local emergency number.