Canthigaster pygmaea
Canthigaster pygmaea, commonly known as the pygmy toby, is a species of pufferfish in the family Tetraodontidae. It is known only from the Red Sea, where it occurs at a depth range of 2 to 30 m (7 to 98 ft). It inhabits coral reefs and is very secretive, often being found hidden in small holes. It is a small oviparous fish, reaching 5.6 cm (2.2 inches) in total length. References 

pygmaea
Fish described in 1977