Amblyeleotris harrisorum is a species of goby

Goby

The gobies form the family Gobiidae, which is one of the largest families of fish, with more than 2,000 species in more than 200 genera. Most are relatively small, typically less than 10 cm in length...

 currently only recorded from Kiritimati

Kiritimati

Kiritimati or Christmas Island is a Pacific Ocean raised coral atoll in the northern Line Islands, and part of the Republic of Kiribati....

 in the Line Islands

Line Islands

The Line Islands, Teraina Islands or Equatorial Islands, is a chain of eleven atolls and low coral islands in the central Pacific Ocean, south of the Hawaiian Islands, that stretches for 2,350 km in a northwest-southeast direction, making it one of the longest islands chains of the world...

 of the central Pacific. As with other Amblyeleotris

Amblyeleotris

Amblyeleotris is a genus of colourful gobies found throughout the Indo-Pacific region. With 37 recognized species, this is the largest genus of the shrimp gobies or prawn gobies, so-called because of their symbiotic relationship with certain alpheid shrimps...

species, it has a symbiotic relationship with alpheid shrimps.

This is an elongated goby up to 75 mm standard length

Fish measurement

Fish measurement refers to the measuring of the length of individual fish and of various parts of their anatomy. These data are used in many areas of ichthyology, including taxonomy and fisheries biology.-Overall length:...

. The background colour is white marked with five vertical pale orange bars. It is most readily distinguished from its congeners by its very colourful caudal fin, bright yellow with orange and blue margin and also by an oblique yellow stripe behind the eye.