Florent's Guide To The

Hawaii 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

Invertebrates
Echinoderms
Sea Urchins

Red Slate Pencil Urchin

Rough-Spined Urchin

Banded Urchin

Radiant Sea Urchin

Radiant Sea Urchin (Juvenile)

Blue-Black Urchin

Collector Urchin

Pebble Collector Urchin

Pale Rock-Boring Urchin

Oblong Sea Urchin

Needle-spined Urchin

Shingle Sea Urchin

Sea Stars
Sea Cucumbers


All Photographs
© 2020 Florent Charpin