no!, they are completely different creatures. this is a seahorse http://images.Google.com/images?hl=en&rls=com.microsoft%3A*%3AIE-SearchBox&um=1&sa=1&q=sea+horse&btnG=Search+Images this is a sea urchin http://images.google.com/images?hl=en&rls=com.microsoft%3A*%3AIE-SearchBox&um=1&sa=1&q=sea+urchin very very different creatures.
A sea urchin closely resembles a pin cushion due to its spherical shape covered in spiny exterior. Sea urchins are echinoderms inhabiting oceans around the world and play important roles in marine ecosystems.
It is the American Alligator, Alligator mississippiensis, that is the state reptile of Florida. They also have the Loggerhead Sea Turtle, Caretta caretta, as their saltwater reptile.
The largest egg among reptiles is laid by the leatherback sea turtle. It can measure about 9 inches in length and 6 inches in width.
The most valuable reptile is the Albino Ball Python. It is highly sought after by reptile enthusiasts due to its unique appearance and rarity in the wild. Albino Ball Pythons can cost thousands of dollars based on their specific genetics and coloration.
The sea urchin is an example of the tubed feet and belongs to the phylum Echinodermata.
A sand dollars crawls but it is not a reptile. It is a Echoinoderm related to sea urchin and star fish.
The classification of a Sea Urchin is Echinoidea
sea urchin
A sea urchin does move, but not very frequently.
because the crab needs the sea urchin for protection and the sea urchin needs the crab for food
Ummm...it's the thing from which a sea urchin hatches?
I think a sea anenome and a sea urchin can live together because i have a little aquarium and there is a sea urchin and and a sea anenome (if that's how you spell it) living in there and they were perfectly fine. BUT if you have a sea urchin do not have any crabs in there, because my sea urchin killed one, and almost killed another one by taking its claw off. :(
It urges the sea to adapt to IT! The litle urchin urger.
Spines of the sea urchin can cause injuries of the skin.
a blue tuxedo sea urchin
A (street) urchin is a child who lives on the street, surviving by engaging in petty crimes. A (sea) urchin is a spiny creature (exoskeleton), with a soft interior. I welcome improvements to this answer.
Urchin (sea urchin) umbrella-fish