Nautilus Shells 7”+ Tiger Striped Chambered whelk An obelisk is a standing

An obelisk is a standing crystal that is pointed and tapered at one end

Some of its species are known as table coral

This piece has been enhanced (glued

There are only two species likely to be seen while scuba diving in Hawaii

The aperture is pearly

Nautilus Shells 7”+ Tiger Striped Chambered whelk An obelisk is a standingNautilus have a well developed nervous system and highly developed eyes. Surrounding the mouth are many tentacles. Nautilus are the only cephalopod to have a true external shell. Naturalists, mathematicians and physicists have been fascinated for years by the form of this shell. The spirally coiled, chambered shell is perfectly proportioned mathematically, a remarkable feat of natural engineering. Air is moved through the many chambers to control