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Mermaid's Wine Glass

Acetabularia sp


Just brought this back off the beach as I did'nt have my camera with me. These beautiful 'parasols' are attached to a stone which has been washed up on the shore after a very stormy night. I've put this in a container with water so that I could see how they would move when in the sea


Acetabularia is an interesting and beautiful species of green algae. It features a lightly calcified stem that hosts a single disc like appendage.


Found this washed up on the beach -

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29 Comments (1–25)

drP 7 years ago

Congratulations on the SOTD! I love Acetabularia, both as a beautiful organism and for its historical role in biology.

As for the classification of green algae, that's been hotly debated for a long time. Traditionally (in the five- or six-kingdom system), the various algae (red, green, brown, etc.) have all been placed in Kingdom Protista. In recent decades, there have been various suggestions at reclassification, most all of which put land plants (embryophytes; members of the traditional kingdom Plantae) and green algae in the same kingdom. This kingdom has been called Chlorobionta, Viridiplantae, Plantae and other things. Many researchers are avoiding terms such as kingdom, opting instead to say that Viridiplantae is a clade that includes green algae and land plants (most green algae in the subclade Chlrophyta; land plants and the rest of the green algae in the subclade Streptophyta). I don't know if there is one generally agreed-upon system right now. Even college textbooks disagree with each other. Makes taxonomy a difficult subject to teach.

VivBraznell 9 years ago

Thanks again!

ShannaB 9 years ago

Congrats Viv! : )

Sachin Zaveri
Sachin Zaveri 9 years ago

Congratulations Viv,,

itsningtime 9 years ago

Amazing find! Great photo as well.

Hema 9 years ago


VivBraznell 9 years ago

WOW! Thanks Yasser I'm so chuffed.......... you can't see from there, but I've got a BIG smile on my face : )
I have learnt so much since joining Project Noah, so big thanks to everyone that has helped me with idents and comments

Atul 9 years ago

congrats Viv!

Ava T-B
Ava T-B 9 years ago

The thumbnail doesn't begin to do this picture justice; click on this spotting to see a beautiful organism!

Rolo 9 years ago

What a fantastic spotting! love with this organism... congrats!

CarolSnowMilne 9 years ago


Fascinating species. Great pictures.
Congrats on the spotting of the day.

Gerardo Aizpuru
Gerardo Aizpuru 9 years ago

Wow wonderful series Viv!

Sergio Monteiro
Sergio Monteiro 9 years ago

Congratulations, Viv.

Yasser 9 years ago

Viv! Thanks for all your wonderful contributions. This great encounter has been selected as Spotting of the Day!

"Acetabularia, sometimes called Mermaid's Wine Glass, are among the largest single-celled organisms, making them an excellent model organism for studying cell biology."

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VivBraznell 9 years ago

Is'nt nature amazing! So lucky we went to the beach after the storm, as I went back yesterday and there were none.

Hema 9 years ago


MaryEvans2 9 years ago

Beautiful spotting-interesting patterns

AnnaWhipkey 9 years ago

Emma, I am not a taxonomist, just basing my comment on Great spotting VivBraznell!

VivBraznell 9 years ago

Changed to 'Other' Emma : ) Thanks!

Hema 9 years ago

therefore it should be categorized as "other"

Hema 9 years ago

All algae are of the kingdom Protista,
A protist is any organism that is not a plant, animal or fungus
Anna, So according to the above link,algae is not a plant

Blogie 9 years ago

VivBraznell - Nice spotting! Of course algae is acceptable. All plant and animal life should be documented here. :)

AnnaWhipkey 9 years ago

green algae are in the kingdom Plantae, I would think they would be categorized as plants on PN.

Hema 9 years ago

Is this an algae? I wonder how would you categorize Algae. Probably other? Might want to confirm with another ranger.
The name and the spotting both are awesome!

Spotted by

จังหวัดนครศรีธรรมราช, Thailand

Spotted on Apr 1, 2012
Submitted on Apr 1, 2012

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