Pygmy seahorse (Hippocampus bargibanti) Mindoro Island, Philippines
by Sergio Discepolo 2010
The pygmy seahorse, also known as Bargibanti’s seahorse, (Hippocampus bargibanti) is a seahorse of the familySyngnathidae found in the western central Pacific Ocean. It is tiny, usually less than 2 centimetres (0.79 in) in size and lives exclusively on fan corals. For more details see below.
Banded sea urchin (Echinothrix calamaris)
by Sergio Discepolo 2010 - Green Island, Mindoro, Philippines
Thebanded sea urchinordouble spined urchin,Echinothrix calamaris, is asea urchinwith a test (shell) diameter of about 5 cm. It has two sets of spines, shorter closed spines which are dark in colour and can deliver a nasty sting, and longer open ended spines that are often banded. This gives it a significant advantage.
The differences betweenEchinothrix calamarisandEchinothrix diademaare: the spines ofE. diademaare not banded, there is only one layer, and they are darker. The more similar species isDiadema savignyi(which has banded spines) - the distinguishing feature being that the banded spines ofD. savignyiare closed at their ends.
Fire urchin (Asthenosoma ijimai) - Mindoro Philippines
Riccio di fuoco by Sergio Discepolo 2010
Platelminta (Pseudoceros bifurcus) Mindoro Green Island