Native SpeciesGreen sea urchin

Strongylocentrotus droebachiensis
FOUND by mskSeaStar2_2012
ID Confirmed
Quality checked by mdenniston
Peer reviewed by mskSeaStar1_2012
Field Notes
I am happy because it didn't rain. It did mist a little though. I am also happy because we found a mini sea urchin. It was so cute. I saw seaweed and the ocean. I heard waves and people. I smelled the ocean and the stench of seaweed. I am surprised I found a sea slug, a sea urchin, and a sea star. I am surprised that other people saw a lobster but not my group. Some problems were moving place to place because it was very slippery. Also it was kinda hard to identify the species of the different creatures.
Supporting Evidence
Photo of my evidence.
I believe it is a green sea urchin because the color of the urchin is green. I also know this is a sea urchin because of the radial symmetry it has which is a trait of all echinoderms.
Photo of my evidence.
This is the bottom of the sea urchin as you can see by the mouth in the middle of the creature. You can see the five teeth that also show radial symmetry.
Photo of my evidence.
And my last piece of evidence is that it is the only kind of sea urchin that lives in Maine. As you can see there are things sticking out. Those things are tubed feet and the tubed feet help the urchin move. This is also a characteristic of echinoderms.
Species Observation: Species Looked For
Did you find it?: 
I think I found it
Scientific name:
Strongylocentrotus droebachiensis
Common name:
Green sea urchin
Is it alive?: 
All alive
Count of individuals: 
Less than 1/4 covered
How big is it?: 
5 - 10 cm
Is it male or female?: 
Can't tell
Sampling method: 
Quadrat (user-placement)
Time search
Photo of our sampling method.
Place Studied
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Map this species
N 43.344180 °
W -70.486480 °
Observation Site Information
A photo of our study site.
Coastal - Rocky intertidal
Trip Information
Kennebunk Beach
Trip date: 
Fri, 2012-05-25 09:15
Town or city: 
Type of investigation: 
Species and Habitat Survey
Time of low tide: 
Fri, 2012-05-25 08:46
Habitat Observations
Species diversity: 
30 different species
Evidence of vectors: 
Paved road
Water temperature: 
Dissolved oxygen: 


The photos you took were great and great evidence for the photos

The photos you took were great and great evidence for the photos

I agree. It is really cute. What's a sea slug look like? Did you post that observation?