Hippocampus bargibanti, also known as Bargibant’s seahorse or the pygmy seahorse, is a seahorse of the family Syngnathidae 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. There are two known color variations: grey with red tubercles, and yellow with orange tubercles. It is unknown whether these color varieties are linked to specific host gorgonians. Because of its camouflage, the species wasn’t discovered until its host gorgonian was being examined in a laboratory. Scientists believe other, similar, species remain to be found.