Gobiidae

redhead goby

Elacatinus puncticulatus

Usually accompanies one particular sea urchin

• Red
• Tropical
• Regional distribution
• Marine fish
• Pacific Ocean
• South America
• Elongated
• Small
• Tropical fish

Elacatinus puncticulatus is a species of goby from the eastern central Pacific Ocean, where it is found on reefs from the Gulf of California to Ecuador. This species occurs at depths ranging from 1 to 21m, and usually in association with the sea urchin Eucidaris thouarsii. The size of the goby varies depending on sex, with females being typically smaller than males, and their geographical location as well as their role as a cleaner goby also has impacts on their morphology.