Cyclichthys orbicularis, known commonly as the birdbeak burrfish among other vernacular names, is a species of marine fish in the family Diodontidae.

The Birdbeak burrfish is a medium size fish and can grow to be up to 30 cm (12 in) long.

[2] The Birdbeak burrfish is widespread throughout the tropical waters of the Indo-West Pacific region from Red Sea to the Philippines.

A study published in 2015 examined the development of offspring produced by a wild-caught but captive pair of birdbeak birdfish.

At this point, the mouth and anus were still closed and the head and trunk were covered by a vestibular dermal sac.

After five days soft rays became visible in the pectoral fins and the young fish had reached a length of 3.7 mm (0.15 in).

At seventeen days after hatching, 21 pectoral, 12 dorsal and 10 anal soft rays were present and the spines started to emerge.