How many kilometers of coastline does the land that the Malacoctenus hubbsi is native to have?
Malacoctenus hubbsi: Malacoctenus hubbsi, the Redside blenny, is a species of labrisomid blenny native to the Gulf of California extending to the Pacific coast of southern Baja California. Gulf of California:  It is bordered by the states of Baja California, Baja California Sur, Sonora, and Sinaloa with a coastline of approximately 4000 km .
approximately 4000