Sea Urchin Embryology Sea Urchin Embryology: Laboratory modules using sea urchin eggs to explore fertilization and development. (Echinoidea) http://www.stanford.edu/group/Urchin/
Sea Urchin Embryo Sea Urchin Embryo: A page from the Laboratory of Embryonic Gene Expression, included here for three beautiful photographs. (Echinoidea) http://www.its.caltech.edu/~mirsky/
Sea Urchin Extravaganza Sea Urchin Extravaganza: Information on purple sea urchins and sea urchin fertilization. (Echinoidea) http://www.geocities.com/thepoetdog/
Microscopic World of Urchin Development Microscopic World of Urchin Development: Personal marine biology site with photomicrographs of urchin (Paracentrotus lividus) development. (Echinoidea) http://www.chez.com/biologypassion/horia/urchin_intro.htm
Photos of Sea Urchins Photos of Sea Urchins: Photos of Echinoidea from the Indo-Pacific, with text about behavior, habitat, and characteristics. (Echinoidea) http://www.starfish.ch/collection/seeigel.html
Mellita quienquesperforata Mellita quienquesperforata: The anatomy of a sand dollar. (Echinoidea) http://www.lander.edu/rsfox/mellita.html
The Echinoids The Echinoids: Information about sea urchins, such as how they live, feed, and reproduce. There is also an alphabetic listing of their taxa. From The Natural History Museum, London. (Echinoidea) http://www.nhm.ac.uk/palaeontology/echinoids/
Sea Urchins Sea Urchins: Brief description and photographs of sea urchins. (Echinoidea) http://www.old.umassd.edu/Public/People/Kamaral/thesis/SeaUrchins.html
Additional
Information: Canadian Content has no additional information.
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