Gobiidae

Exuma goby

Elacatinus atronasus

Clustered near reef faces

• Black
• Tropical
• Regional distribution
• Marine fish
• Atlantic Ocean
• Central America and the Caribbean
• Small
• Tropical fish

Elacatinus atronasus is a species of ray-finned fish in the family Gobiidae which is endemic to a single reef in Exuma Sound in the Bahamas. It is a species associated with a coral reefs but unlike many other species in the genus Elacatinus it does not engage in cleaning behaviour, feeding instead on particulate zooplankton. It occurs in large, mixed groups in the vicinity of vertical faces which have plentiful holes and near undercut ledges.