Maldives Marine Life

Marine life of Maldivian waters

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Spotted porcupinefish
No photo available
Photo: Diego Delso / Wikimedia Commons, CC BY-SA 4.0 (view on Wikimedia Commons)

Spotted porcupinefish

Diodon hystrix

Valid name (FishBase; confirmed in Eschmeyer's Catalog of Fishes and WoRMS, October 2026).

English
Spotted porcupinefish
Scientific
Diodon hystrix
Dhivehi
No recorded Dhivehi name
Group
Reef fish
Family
Diodontidae (porcupinefishes)
Maximum size
Up to about 91 cm (total length); commonly 40 cm; max. published weight 2.8 kg
Depth and habitat
Coral reefs and reef-associated habitats, recorded from 2 to 50 m (usually 3 to 20 m)
IUCN status
LC · Least ConcernLeast Concern (LC), assessed 2011

Description

A large porcupinefish, greyish tan covered with small black spots and long, sharp spines that lie flat until the fish inflates itself with water. It has big eyes and fused beak-like teeth that crush sea urchins, snails and hermit crabs. It rests in caves and under ledges by day and forages at night. Its organs contain tetrodotoxin and it should not be eaten.

In the Maldives

Commonly seen resting in holes and under overhangs on Maldivian reefs.

Sources

Dhivehi name source: No Dhivehi name found in MRS 1997 (available chapters), FishBase (country: Maldives) or Dhivehi Wikipedia.