Florent's Guide To The

Tropical Pacific Reefs

Red Slate Pencil Urchin
Red Slate Pencil Urchin
Scientific Name: Heterocentrotus mammillatus
Class: Echinoidea
Category: Sea Urchins
Size: 5 to 10 in. (12 to 25 cm)  
Depth: 3-160 ft. (1-50 m)
Distribution: Indo-Pacific, Hawaii

Echinoderms
Sea Urchins

Red Slate Pencil Urchin

Longspine Heart Urchin

Pebble Collector Urchin

Bell's Sea Urchin (Juvenile)

Flower Urchin

Collector Urchin

Variable Fire Urchin

Radiant Sea Urchin

Radiant Sea Urchin (Juvenile)

Rough-Spined Urchin

Shingle Sea Urchin

Savignyi's Longspine Urchin

Black Longspine Urchin

Pale Rock-Boring Urchin

Oblong Sea Urchin

Needle-Spined Urchin

Banded Urchin

Blue-Black Urchin



All Photographs
© 2020 Florent Charpin