Special thanks for the first photo of the goby to Dr. Gerry R. Allen, he has taken the photo at Galapagos Islands.
Spotcheek goby, a shallow-water species, is endemic to the Eastern Pacific, the goby is found in the Gulf of California, central Mexico, and from El Salvador to western Panama including Cocos and the Galapagos Islands.
Lythrypnus rhizophora inhabits rocky reefs and is found on the roof of small crevices and caves in rocky walls and shelves to depths of 20 meters.
Similar or even identic with Lythrypnus pulchellus!?