Chaenopsidae

Cocos barnacle blenny

Acanthemblemaria atrata

Endemic to Cocos Island and listed as vulnerable

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

Acanthemblemaria atrata, the Cocos barnacle blenny, is a species of chaenopsid blenny native to the Pacific Ocean waters around Cocos Island, Costa Rica. This species reaches a standard length of 3.2 cm (1.3 in).