Quillfin Blenny
Gobioclinus filamentosus
- Least concern
- Card rarity: Common
- Fish

Gobioclinus filamentosus, the Quillfin blenny, is a species of labrisomid blenny native to the Caribbean Sea where they can be found on reefs with substantial algal growth. It prefers deeper reefs at depths of from 12 to 35 metres. This species can reach a length of 12 centimetres (4.7 in) TL.
Classification
- Class
- Actinopterygii
- Order
- Blenniiformes
- Family
- Labrisomidae
- Genus
- Gobioclinus