The masked spinefoot (Siganus puellus), also known as decorated rabbitfish or masked rabbitfish, occurs in shallow, coral-rich areas of clear lagoons and seaward reefs of the Indo-West Pacific region at depths of 10 to 100 feet.Its body is yellow-orange dorsally grading through pale blue to white below. The body is also covered with wavy blue lines that are vertical anteriorly and horizontal posteriorly.