Cryptotrema seftoni, known commonly as the Hidden blenny in Mexico

Mexico

The United Mexican States , commonly known as Mexico , is a federal constitutional republic in North America. It is bordered on the north by the United States; on the south and west by the Pacific Ocean; on the southeast by Guatemala, Belize, and the Caribbean Sea; and on the east by the Gulf of...

, is a species of labrisomid

Labrisomid

Labrisomids are small blennioids, perciform marine fish belonging to the family Labrisomidae. Found mostly in the tropical Atlantic and Pacific Ocean, the family contains approximately 98 species in 14 genera....

 blenny. It is a tropical blenny known from three specimens which were collected from Angel de la Guarda Island, in the Gulf of California

Gulf of California

The Gulf of California is a body of water that separates the Baja California Peninsula from the Mexican mainland...

 in the eastern central Pacific Ocean

Pacific Ocean

The Pacific Ocean is the largest of the Earth's oceanic divisions. It extends from the Arctic in the north to the Southern Ocean in the south, bounded by Asia and Australia in the west, and the Americas in the east.At 165.2 million square kilometres in area, this largest division of the World...

. It was described by Clark L. Hubbs in 1954. Blennies in this species swim at a depth range of 26-37 metres.