The branches have many very small white polyps that are usually only seen at night when the lights of the aquarium are off
Mushrooms are considered 'phase shift' corals
The fronds may be clustered together in a supercolony formed from one or more individual colonies and extending for several metres (yards) across the seabed
and is usually attached to a small piece of rock
chambered shell is perfectly proportioned mathematically
Left-handed Whelk Jade Turbos The branches have many veryThe Lightning Whelk, Sinistrofulgur sinistrum (Hollister, 1958), is one of the local molluscan celebrities, not only because of its large size, but also thanks to very special features that make this species truly remarkable. For instance, unlike most gastropods, which are right handed, the Lightning Whelk has a left handed shell (shell opening to the right with shell spire pointing up). Abnormally right handed Lightning Whelks are very uncommon, but