Elusive Signal Blennies in threatening posture, Emblemaria walkeri, La Paz, Baja California Sur, Mexico

Gulf Signal Blennies in threatening posture, Emblemaria hypacanthus, La Paz, Baja California Sur, Mexico

Elusive Signal Blennies in threatening posture, Emblemaria walkeri, La Paz, Baja California Sur, Mexico

Elusive Signal Blennies in threatening posture, Emblemaria walkeri, La Paz, Baja California Sur, Mexico

Browncheek Blenny, Acanthemblemaria crockeri, La Paz, Baja California Sur, Mexico

Elusive Signal Blennies in threatening posture, Emblemaria walkeri, La Paz, Baja California Sur, Mexico

Striped Blenny hides in a tube, Petroscirtes breviceps, Ambon, Moluccas, Indonesia

Striped Blenny hides in a tube, Petroscirtes breviceps, Ambon, Moluccas, Indonesia

A Secretary Blenny looks out from its coral home, Bonaire, Caribbean Netherlands.

A Secretary Blenny looks out from its coral home, Bonaire, Caribbean Netherlands.