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en.wikipedia.org/wiki/Red_sea_urchin

The red sea urchin (Mesocentrotus franciscanus) is a sea urchin found in the Pacific Ocean from Alaska to Baja California. It lives in shallow waters from the ...

www.aquariumofpacific.org/onlinelearningcenter/species/red_sea_urchin

The red sea urchin's body is domed above and flat below. Its external skeleton, called a test, is made up of 10 fused, chalky plates covered with spines.

marinebio.org/species.asp?id=45

Find out what's known about Red Sea Urchins, Mesocentrotus franciscanus, Echinoidea, Camarodonta, Strongylocentrotidae, including their world range and  ...

www.racerocks.com/racerock/eco/taxalab/ensy02/ainhoao.htm

Strongylocentrotus franciscanus,Giant Red Sea urchin,Red Sea Urchin, Taxonomy of Race Rocks,racerocks.com,Marine Protected Area,Race Rocks.

animaldiversity.org/accounts/Strongylocentrotus_franciscanus

Red sea urchins are predominantly found along the Pacific coast of North American, from Isla Cedros, Baja California, to the Gulf of Alaska. This species is also ...

oregonstate.edu/ua/ncs/archives/2003/nov/red-sea-urchins-discovered-be-one-earths-oldest-animals

Nov 4, 2003 ... CORVALLIS, Ore. - A new study has concluded that the red sea urchin, a small spiny invertebrate that lives in shallow coastal waters, is among ...

www.ask.com/youtube?q=Red+Sea+Urchins&v=u77vR7NdaJQ
Jun 30, 2014 ... The fishing vessel Skipjack unloads its catch of red sea urchins in Ketchikan, Alaska. Divers commercially harvest the urchins for their roe, ...

tolweb.org/treehouses/?treehouse_id=4881

There are more than 700 different species of sea urchins. ... Some of the most frequently seen colours are black, red, brown, purple and light pink. On the bottom ...

www.dfg.ca.gov/marine/pdfs/response/seaurchin.pdf

The relative abundance of red urchins has declined since the 1970s (e.g., Carroll ... In southern California, the red sea urchin resource now produces about 10.

www.wildlife.ca.gov/Conservation/Marine/Invertebrates/Sea-Urchin

California's coastal waters are home to a multitude of invertebrates (species lacking a bony skeleton). A small fraction of these, including the red sea urchin and ...