Purple sea urchins
click image to go back to the first page
After a complex series of changes the adult echinoderms are formed. They will abandon the plankton and live a life on the bottom of the sea. Adult sea urchins, starfish and brittlestars can be studied quite easily in tide pools. When you turn stones (do turn them back again!) you can find them.
The purple sea urchins depicted on this page do not only rely on their spines; they live embedded in the rock. The hollow they create just fits them so they are quite safe. On top of that they camouflage themselves with shells or other things they gather.
This gallery only gives a brief introduction to several types of echinoderm larvae. A more complete account on the development of echinoderm larvae can be found in the Micscape articles Growth of a starfish and The sea urchin, a stinging but amazing animal
size about 6 centimetres
Comments to the author Comments to the author sent via our contacts page quoting page url plus : ('wegmond','')">Wim van Egmond are welcomed.
For other micro organisms: Wim's HOME PAGE
More microscopic marine life can be found in The Virtual Ocean
Microscopy UK Front Page
All photographs © Wim van Egmond
Published in the July 2000 edition of Micscape Magazine.
Please report any
Web problems or offer general comments to the Micscape Editor,
via the contact on current Micscape Index.
Micscape is the
on-line monthly magazine of the Microscopy UK web
site at Microscopy-UK