blue tang
• noun
A species of brightly colored marine surgeonfish (Paracanthurus hepatus) native to the coral reefs of the Indo-Pacific, characterized by a vibrant royal blue body, yellow tail, and black palette-shaped markings.
"The aquarium exhibit featured a vibrant coral reef teeming with clownfish and a solitary blue tang."
North American A species of surgeonfish (Acanthurus coeruleus) found in the western Atlantic Ocean and the Caribbean Sea, which transitions from bright yellow as a juvenile to solid blue with a yellow tail spine as an adult.
"While snorkeling off the coast of Belize, she photographed a school of Atlantic blue tangs grazing on the algae."
Word Nuance & Usage
The common name 'blue tang' is applied to two distinct species of surgeonfish from different oceans, which can cause confusion: the Indo-Pacific blue tang (famous from popular animated films) and the completely separate Atlantic blue tang.
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Usage Trend
Historical frequency of usage in published text.