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Slate-pencil urchin (Goniocidaris tubaria) This is a shot of the oral side of the same urchin as in the previous spotting. <br />
<figure class="photo"><a href="https://www.jungledragon.com/image/59831/slate-pencil_sea_urchin_goniocidaris_tubaria.html" title="Slate-pencil sea urchin (Goniocidaris tubaria)"><img src="https://s3.amazonaws.com/media.jungledragon.com/images/2767/59831_thumb.jpg?AWSAccessKeyId=05GMT0V3GWVNE7GGM1R2&Expires=1759968010&Signature=asL%2Bvg9SVTdAZ1TdEKbA75Vp5to%3D" width="200" height="150" alt="Slate-pencil sea urchin (Goniocidaris tubaria) This sea urchin was about 50 mm across and was covered with short red spines and thick pale ones. Some of the spines had dark red ridges and others seemed to have broken off. This photo shows the top side (aboral).<br />
The sea urchin appeared to have died recently and was spotted along the low tide mark on the rocky ocean shore on the southern coast.<br />
Ventral view (with 'mouth' showing) https://www.jungledragon.com/image/59832/slate-pencil_urchin_goniocidaris_tubaria.html<br />
<br />
Australia,Fall,Geotagged,Goniocidaris tubaria,Slate-pencil Sea Urchin,echinoidea,sea urchin,slate-pencil urchin" /></a></figure><br />
At the centre is a complex apparatus called the aristotle's lantern, partially visible as a white triangular tooth. The apparatus is made up of muscles and 5 eversible calcareous teeth and plates that help with scraping off algae from rocks and sea floor. It is so called because the apparatus is shaped like a lantern. The individual parts are beautiful and intricate. Australia,Fall,Geotagged,Goniocidaris tubaria,Slate-pencil Sea Urchin,echinoidea,sea urchin,slate-pencil urchin

Slate-pencil urchin (Goniocidaris tubaria)

This is a shot of the oral side of the same urchin as in the previous spotting.

Slate-pencil sea urchin (Goniocidaris tubaria) This sea urchin was about 50 mm across and was covered with short red spines and thick pale ones. Some of the spines had dark red ridges and others seemed to have broken off. This photo shows the top side (aboral).<br />
The sea urchin appeared to have died recently and was spotted along the low tide mark on the rocky ocean shore on the southern coast.<br />
Ventral view (with 'mouth' showing) https://www.jungledragon.com/image/59832/slate-pencil_urchin_goniocidaris_tubaria.html<br />
<br />
Australia,Fall,Geotagged,Goniocidaris tubaria,Slate-pencil Sea Urchin,echinoidea,sea urchin,slate-pencil urchin

At the centre is a complex apparatus called the aristotle's lantern, partially visible as a white triangular tooth. The apparatus is made up of muscles and 5 eversible calcareous teeth and plates that help with scraping off algae from rocks and sea floor. It is so called because the apparatus is shaped like a lantern. The individual parts are beautiful and intricate.

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The Slate-pencil Sea Urchin

Goniocidaris tubaria is a sea urchin from the Cidaridae family.

Info 2 0

Similar species: Pencil Urchins

Species identified by Christine Young

By Leuba Ridgway

All rights reserved

Uploaded May 9, 2018. Captured May 6, 2018 11:30 in 648 Ventnor Rd, Ventnor VIC 3922, Australia.

country flag of Australia

Explore Australia 13,072 4,173 3

SZ-10
f/3.7
10/3200s
ISO64
10.99mm

Captured in the fall. More fall photos.

This photo also appears in

Sea urchin - Goniocidaris tubaria (2)

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