Report on the zoological collections made in the Indo-Pacific Ocean during the voyage of H.M.S. 'Alert' 1881-2.London :Printed by order of the Trustees,1884. biodiversitylibrary.org/page/12067688
This fish is unique to Death Valley, California and is one of several Pupfish species endemic to the Mojave Desert. It is seen here in Salt Creek on the floor of Death Valley on March 16th 2012. The fish are not yet fully mature, and apparently turn blue later in the season. Image I12-0623.