Starksia spinipenis
Starksia spinipenis
- Least concern
- Card rarity: Common
- Fish

Starksia spinipenis, the phallic blenny, is a species of labrisomid blenny native to the Pacific coast of Mexico from the Gulf of California to Acapulco. It prefers shallow sandy areas with weed growth. This species can reach a length of 5 centimetres (2.0 in) TL. The specific name is a compound noun if spinis meaning "spine" and penis, a reference to the first spine in the anal fin of the males which is elongated and free of the fin membrane and is modified as a copulatory organ, a characteristic of the genus Starksia.
Classification
- Class
- Actinopterygii
- Order
- Blenniiformes
- Family
- Labrisomidae
- Genus
- Starksia