Sirachai Arunrugstichai / Shortspine Porcupinefish (Cyclichthys orbicularis) on sandy bottom at night, Lembeh Strait, North Sulawesi, Indonesia.7.

Georgette Douwma / Orbicular burrfish or Shortspine porcupinefish (Cyclichthys orbicularis) with a Bluestreak cleaner wrasse ( Labroides dimidiatus) Ambon, Indonesia.

Tony Wu / Porcupine pufferfish (Cyclicththus orbicularis) close up portrait, Ambon, Indonesia

Brandon Cole / Orbicular Burrfish (Cyclichthys orbicularis) close up of face, Indonesia, tropical Indo-Pacific Oceans.

Jeff Rotman / Orbicular burrfish / Short-spined porcupinefish (Cyclichthys orbicularis) puffed up with water, Lembeh Strait, Celebes Sea, Sulawesi, Indonesia.

Jeff Rotman / Orbicular burrfish / Short-spined porcupinefish (Cyclichthys orbicularis) puffed up with water, Lembeh Strait, Celebes Sea, Sulawesi, Indonesia.

Jurgen Freund / Orbicular burrfish / Pufferfish (Cyclichthys orbicularis) inflated for defense, Indo-Pacific

Fred Bavendam / Birdbeak Burrfish (Cyclichthys orbicularis), Ambon, Indonesia

David Fleetham / Juvenile birdbeak burrfish (Cyclichthys orbicularis), Mabul Island, Malaysia.

David Fleetham / Juvenile birdbeak burrfish (Cyclichthys orbicularis), Mabul Island, Malaysia.