Invasive SpeciesSea potato

Colpomenia peregrina
FOUND by Flippinsnails
Cape Elizabeth
ID Confirmed
Quality checked by flippinseaweed
Peer reviewed by flippinseaweed
Field Notes
we started looking on the rocks but we couldn't find anything so we decided to move down to the beach. once we moved to the beach we started finding several colpomenia peregrina also known as sea potato. to be honest I'm not that surprised we found sea potato because I've seen them several times on the beach before and they are not rare in Maine. I didn't slip which was successful. I saw the beach and the ocean. I smelled the salt water and fresh air. I heard kids talking and waves crashing. I enjoyed the little trip and was fun to find my species.
Supporting Evidence
Photo of my evidence.
In this photo, you can see that the sea potato is a greenish brown color, which is what this species is showing. If it was any other color than we would know that it is not the sea potato.
Photo of my evidence.
In this photo, you can see some sort of liquid in it. the sea potato carries saltwater in it so that is what that liquid is. You can also see how the sea potato is still attached to the seaweed. that is how the sea potato comes on to the shore. it attaches to seaweed and washes up onto the beach.
Photo of my evidence.
In this photo, you can see through the thin walls of the sea potato, and if it was a thicker walled species then you would know if it was a sea potato or not. That is how we know we found the sea potato.
Species Observation: Species Looked For
Did you find it?: 
I think I found it
Scientific name:
Colpomenia peregrina
Common name:
Sea potato
Sampling method: 
Just looking around
Photo of our sampling method.
Place Studied
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Map this species
N 43.561465 °
W -70.218134 °
Observation Site Information
A photo of our study site.
Coastal - Beach or dune
Trip Information
Kettle Cove
Trip date: 
Thu, 2018-10-25 08:45
Town or city: 
Cape Elizabeth
Type of investigation: 
Species Survey
Time of low tide: 


it is truly a masterpiece. nothing more beautiful has ever been created. thank you.