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Echinodermata (echinoderms)
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Echinoidea (sea urchins)
Fibulariidae (periproctal plates)
Description
Periproctal plates of fibulariids: a. Echinocyamus pusillus. b. Echinocyamus elongatus: The periproct is covered by several radiating, naked plates. c. Fibularia ovulum: The periproct is covered by five valve-like plates. d. Mortonia australis: The periproct is covered by numerous, small, irregular plates set with miliary spines.
Scales: a. 1 mm; b. 0,5 mm; c. 1 mm; d. 1 mm
Author
Schultz, Heinke
JPG file
- 75.71 kB
- 1 577 x 397 pixels
added on 2009-02-23
1 626 views
From reference
Schultz, H. (2009). Sea urchins II: Worldwide irregular d...
© 2009 Schultz, Heinke
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