Haeckel says: The central capsule contains numerous spherical nuclei and is enclosed by the hyaline calymma, which forms conical sheaths around the spines.
Amphilonche (amf-ee-lonk-chee) - an acantharean, the cytoplasm is attached to the radiating spicules by contractile myonemes. Two of the spicules are much longer than the others. This is an example of one of the four types of large amoebae which commonly occur in the marine water colum. Dark ground image by Dave Caron.