Error processing SSI file
back button

100 dpi image

Error processing SSI file

A pteropod, or sea butterfly, flutters through the water column. This snail has adopted life in the water column and internalized its hard shell. (photo: Gulf of the Farallones NMS)

Download/Display 300 dpi image
NOAA logo Revised July 31, 2017 by Sanctuaries Web Group
Many links leave the National Marine Sanctuary Web Site - please view our Link Disclaimer for more information
National Ocean Service | National Oceanic and Atmospheric Administration | Privacy Policy | Contact Us