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Urchin beak

Description:

A sea urchins mouth have lips of soft tissue that also have small bony pieces embedded inside. Their mouth is found on the underside part of the urchin (also called the oral side) They also have teeth. These teeth act like jaws. There are five teeth in most sea urchins and they are part of the organ called Aristotle's lantern. The Aristotle’s lantern is the organ that chews and ingests food. This complex structure is composed of five jaws made up of calcium plates. The plates are connected by muscles. Creatures use their Aristotle's lantern, or mouths, to scrape algae off rocks and other surfaces, as well as biting and chewing prey. References: https://www.thoughtco.com/aristotles-lan... https://askabiologist.asu.edu/sea-urchin... https://askabiologist.asu.edu/aristotles...

Notes:

Found it laying in shallow water near the shoreline



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4 Comments

TajSALDO
TajSALDO 6 days ago

I guess you are right @Machi, Thanks for letting me know. I'll be updating this spotting soon.

Machi
Machi 6 days ago

Definitely an urchin beak.

Gaia80
Gaia80 a week ago

It could be the remains of a starfish or some kind of sea urchin, but I really have no clue otherwise.

Single D
Single D a week ago

I don't know what this is either but I sure do like your spotting.

TajSALDO
Spotted by
TajSALDO

Palawan, Philippines

Lat: 10.49, Long: 119.15

Spotted on Jul 4, 2019
Submitted on Jul 9, 2019

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