pl23_expn2891.jpg
![A purple pancake urchin (Hygrosoma petersi) with no apparent commensalspecies living within spines expn2891.jpg A purple pancake urchin (Hygrosoma petersi) with no apparent commensalspecies living within spines](https://s3.amazonaws.com/s3-east-testmedia-noaa.woc.noaa.gov/dam/Photos/legacy/pl23_expn2891.jpg)
Description
A purple pancake urchin (Hygrosoma petersi) with no apparent commensalspecies living within spines.
Credit
NOAA OKEANOS EXPLORER Program; Our Deepwater Backyard
Display Date
20141006T150155Z
Collection
Voyage to Inner Space
Ocean Exploration Collections
Modern Expeditions
Our Deepwater Backyard 2014