Family: Cidaridae
Tribe: Phyllacanthina
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Imperial Lance Urchin - Phyllacanthus imperialis
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Club-spined Sea Urchin - Phyllacanthus irregularis
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Eastern Pencil Urchin - Phyllacanthus parvispinus
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Subfamily: Goniocidarinae
Genus: Goniocidaris > Subgenus: Goniocidaris (Goniocidaris)
Stumpy Pencil Urchin - Goniocidaris (Goniocidaris) tubaria
Stumpy Pencil Urchin - Goniocidaris (Goniocidaris) tubaria
Subfamily: Stereocidarinae
Stereocidaris microtuberculata
Stereocidaris sceptriferoides
Subfamily: Stylocidarinae
Acanthocidaris curvatispinis
Prionocidaris australis
Prionocidaris baculosa (possible occurrence)
Beautiful Pencil Urchin - Prionocidaris callista
Stylocidaris conferta
Stylocidaris reini
Taxonomy:
Phylum: Echinodermata (Echinoderms)
> Subphylum: Echinozoa (Sea Urchins and Sea Cucumbers)
> Class: Echinoidea (Sea Urchins, Sand Dollars and Heart Urchins)
> Subclass: Cidaroidea (Pencil Urchins)
> Order: Cidaroida (Pencil Urchins)
> Superfamily: Cidaroidea
> Family: Cidaridae
> Tribe: Phyllacanthina
> Genus: Phyllacanthus
> Species: P. imperialis - Imperial Lance Urchin
> Species: P. irregularis - Club-spined Sea Urchin
> Species: P. parvispinus - Eastern Pencil Urchin
> Subfamily: Goniocidarinae
> Genus: Goniocidaris
> Subgenus: Goniocidaris (Goniocidaris)
> Species: G. (Goniocidaris) tubaria - Stumpy Pencil Urchin
> Subfamily: Stereocidarinae
> Genus: Stereocidaris
> Species: S. microtuberculata
> Species: S. sceptriferoides
> Subfamily: Stylocidarinae
> Genus: Acanthocidaris
> Species: A. curvatispinis
> Genus: Prionocidaris
> Species: P. australis
> Species: P. baculosa ^
> Species: P. callista - Beautiful Pencil Urchin
> Genus: Stylocidaris
> Species: S. conferta
> Species: S.reini
^ = possibly
* = likely
References and links:
Photographic contributions: