Southern eelgrass blenny
Stathmonotus stahli
- Least concern
- Card rarity: Common
- Fish

Stathmonotus stahli, the eelgrass blenny or the seagrass blenny, is a species of chaenopsid blenny found in coral reefs in the western Atlantic ocean. It can reach a maximum length of 4 centimetres (1.6 in) TL. The specific name honours the Puerto Rican physician and biologist Agustín Stahl (1842-1917).
Classification
- Class
- Actinopterygii
- Order
- Blenniiformes
- Family
- Labrisomidae
- Genus
- Stathmonotus