Hyalonema /(?)/

Hy·a·lo·ne·ma

Hyalonema

n.
  1. A genus of hexactinelline sponges, having a long stem composed of very long, slender, transparent, siliceous fibres twisted together like the strands of a color. The stem of the Japanese species (Hyalonema Sieboldii), called glass-rope, has long been in use as an ornament. See Glass-rope. (Zool.)