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Echinodermata (echinoderms)
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Echinoidea (sea urchins)
Goniocidaris (Cyrtocidaris) tenuispina (apical disc, ambulacral plates and primary spine cross section)
Description
a. Apical system of (1.) male, (2.) female, b. Part of primary spine, transverse section: The outer surface is covered by a meshwork of cortical hair, c. Ambulacral plates: The depressed, naked median zone is zigzag shaped.
a. Scale 4 mm, b. Scale 250 µ, c. Scale 20 mm.
Author
Mortensen, Theodor
JPG file
- 161.67 kB
- 1 671 x 393 pixels
added on 2011-02-23
202 views
From reference
Schultz, H. (2011). Sea urchins III: Worldwide regular de...
© 2011 Mortensen, Theodor
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