José Longinos Martínez was a Spanish naturalist whose account of his travels through Baja California Sur, Baja California, and California in 1792 provided an important early account of the region, its fauna, flora, minerals, and native inhabitants.
Longinos was born in Navarre. Coming to New Spain as part of a government-sponsored botanical expedition, he fell out with his superiors and struck off on his own. He traveled from Cabo San Lucas to Monterey between January and September 1792.
Perhaps because of the rapidity of his journey, his account of the region was sometimes superficial, second-hand, or inaccurate. Nonetheless, it documented substantial otherwise-lost information, particularly on the lifeways of the native peoples.