Radiolaria and Skeletal Structures

Ethmosphaera siphonophora, Cyrtidosphaera reticula, Arachnosphaera, A. oligacantha, A. Myriacantha, Aulosphaera elegantissma -- amoeboid holoplanktonic protozoans called Radiolaria with mineral skeleton with an inner endoplasm and ectoplasm - There is a border around the image. Image size is correct. Many sizes available.