Florent's Guide To The

Tropical Pacific Reefs

Variable Fire Urchin
Variable Fire Urchin
Scientific Name: Asthenosoma varium
Order: Echinothurioida
Family: Echinothuriidae
Category: Sea Urchins
Size: Up to 8 in. (20 cm)  
Depth: 3-200 ft. (1-60 m)
Distribution: Indo-West Pacific

Echinoderms
Sea Urchins

Variable Fire Urchin

Longspine Heart Urchin

Shingle Sea Urchin

Pale Rock-Boring Urchin

Oblong Sea Urchin

Needle-Spined Urchin

Red Slate Pencil Urchin

Bell's Sea Urchin (Juvenile)

Pebble Collector Urchin

Flower Urchin

Collector Urchin

Rough-Spined Urchin

Radiant Sea Urchin

Radiant Sea Urchin (Juvenile)

Savignyi's Longspine Urchin

Black Longspine Urchin

Banded Urchin

Blue-Black Urchin



All Photographs
© 2025 Florent Charpin