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Scutellina (adapical plating)
Description Upper side with interambulacrum IA 2 and adjacent ambulacra. Left: Laganina [now Laganiformes]: The interambulacral column ends in a single plate at the apical disc and becomes very narrow at the margin. Right: Scutellina [now Scutelliformes]: The interambulacral column ends with two plates at the apical disc and is slightly narrower than the ambulacrum at the margin.
JPG file - 116.06 kB - 1 181 x 558 pixels
added on 2005-02-232 011 viewsFrom reference Schultz, H. (2006). Sea urchins: A guide to worldwide sha...
© 2005 Schultz, Heinke
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