Spotted puffer

The spotted puffer (Guentheridia formosa) is a pufferfish of the family Tetraodontidae that lives along the coasts of the eastern Pacific Ocean, from Costa Rica south to Ecuador. It is the only known member of the monotypic genus Guentheridia, and it grows to about 26 centimetres in total length. The body is white, with dense dark spots over the back and sides in varying patterns and variable yellowish markings. The head is wider than it is deep and convex between the eyes, a single dorsal fin sits far back above a similar anal fin, and a slit-like gill opening lies in front of the pectoral fin. The tail fin is generally straight and may look dusky or greenish. The fish is found in shallow coastal water, mostly at the bottom over soft mud or sand, between the surface and about ten metres deep. Reference works list it as a carnivorous, harmless bottom dweller of tropical seas. It is also called compere tachete in French and tamborin or tamboril manchado in Spanish.