Longspined porcupinefish

Diodon holocanthus

"Diodon holocanthus", known commonly as the longspined porcupinefish or freckled porcupinefish among other vernacular names, is a species of marine fish in the family Diodontidae.
Diodon holocanthus Air Bajo I, Lembeh. Another little smiley! Diodon holocanthus,Geotagged,Indonesia,Longspined porcupinefish,Spring

Appearance

Pale in colour with large black blotches and smaller black spots, these spots becoming fewer in number with age. Has many long, two-rooted depressible spines particularly on its head. The teeth of the two jaws are fused into a parrot-like "beak". Adults may reach 50 cm in length. The only other fish with which it might be confused is the black-blotched porcupinefish, but it has much longer spines than that species.
Longspined porcupinefish - Diodon holocanthus Diving in Sal, Cabo Verde.  Cape Verde,Diodon holocanthus,Fall,Geotagged,Longspined porcupinefish

Distribution

The Longspined porcupinefish has a circumtropical in distribution, being found in the tropical zones of major seas and oceans:
⤷  In the Atlantic it is found from Florida and the Bahamas to Brazil and in the Eastern Atlantic from 30°N to 23°S, as well as around South Africa.
⤷  In the western Indian Ocean from the southern Red Sea to Madagascar, Réunion and Mauritius.
⤷  In the Pacific Ocean from southern Japan to Lord Howe Island, and east to the Hawaiian and Easter islands. Also from southern California to Colombia and the Galapagos Islands.
Diodon holocanthus Rojos I, Lembeh. Diodon holocanthus,Geotagged,Indonesia,Longspined porcupinefish,Spring

Habitat

Found over the muddy sea bottom, in estuaries, in lagoons or on coral and rocky reefs around the world in tropical and subtropical seas.
Diodon holocanthus Nudi Falls, Lembeh. Diodon holocanthus,Geotagged,Indonesia,Longspined porcupinefish,Spring

Food

The species' diet includes sea urchins and hard-shelled mollusks.Feeds on mollusks, sea urchins, hermit crabs, snails, and crabs during its active phase at night. They use the beak combined with plates on the roof of the mouth to crush their prey such as molluscs and sea urchins that would otherwise be indigestible.
Longspined porcupinefish  (Diodon holocanthus) Air Prang, Lembeh. Diodon holocanthus,Geotagged,Indonesia,Longspined porcupinefish,Spring

Uses

It is used in Chinese medicine, and is captured at the surface with a hand net. It is poisonous if not prepared correctly.

References:

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Taxonomy
KingdomAnimalia
DivisionChordata
ClassActinopterygii
OrderTetraodontiformes
FamilyDiodontidae
GenusDiodon
SpeciesD. holocanthus