2Hydroids (2) & Hydrocorals (2) Hydroids- usually colonial, skeleton looks branchy like a fern, individual polyps are attached to branches. Complex life cycle.Hydrocorals- colonial, marine hydrozoans with a limestone skeleton. (resemble true corals).
16Angular Sea Whip Gorgonian Commonly seen on our snorkels. Picture below shows details of polyps.
17Common Sea FanGorgonianOnes we seewill have purplecolored “veins”.
18Venus Sea Fan Gorgonian Notice yellow colored “veins” on the sea fans on the left.
19Anemones (4)Anemones- solitary polyps attached to bottom of sea, lack hard skeletal parts. Tentacles with nematocysts sting and capture prey which is then inserted into mouth on oral disc. May contract tentacles for protection.
20Giant (aka: Pink-Tipped) You will probably see these, especially during our invertebrate walk. Usually pretty small (1-3 in)
27Corals (13)Stony Corals- hard corals, reef builders. Polyps secreting calcium carbonate to form hard cups (corallites) that protect soft bodies. Increase in size by asexual budding.NOTE: When snorkeling over a coral head, look for combinations of stony coral, gorgonians, anemones and other organisms all living together.
28StaghornCoralYou will see these often on the main reef!
29Elkhorn Coral Ginormous! These have made a comeback around Andros~you should see lots!
30Finger (Clubbed-finger) CoralCommonly seen on our trip.Look for the large wall of finger coral by the oceanic blue hole