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Severn's pygmy seahorse (Hippocampus severnsi) is a free-living species described in 2008. They are almost the same shape as Pontoh's pygmy seahorse, but are a different colour: pale brown with red and orange patches. They can be found on any part of the reef, but often on hydroids and algal turf in pairs or small group.
Hippocampus bargibanti, also known as Bargibant's seahorse or the pygmy seahorse, is a seahorse of the family Syngnathidae found in the central Indo-Pacific area. [3]This pygmy seahorse is tiny—usually less than 2 centimetres (0.79 in) in size—and lives exclusively on gorgonian sea-fans, as its coloration and physical features expertly mimic the coral for camouflage. [4]
The weedy pygmy seahorse is a small fish which can reach a maximum length of approximately 1.7 cm, which makes it one of the smallest representatives of the seahorses. [4] The body is small and slender with a prehensile tail. The head is relatively large, it represents about 25% of the size of the body. [4] The eyes are prominent.
Pygmy seahorses, about the size of a fingernail, are some of the smallest vertebrates in the world. First discovered in 1969, little was known about the creatures. But in the early 2000s, British ...
Denise's pygmy seahorse uses adaptive camouflage, changing its color to match that of the surrounding gorgonians. [4] It feeds on small crustaceans and other zooplankton. [6] An individual will stay on a single coral for the duration of its entire life. The species is ovoviviparous, and it is the male who broods the eggs in its ventral brood pouch.
Pygmy seahorses have a single gill opening on the back of the head (instead of two on the sides as in normal seahorses), and the males brood their young inside their trunk, instead of in a pouch on the tail. [11] A molecular phylogeny confirms that the pygmy seahorses are a monophyletic sister lineage of all other seahorses. [10]
Male seahorses have a specialized ventral brood pouch to carry the embryos, male sea dragons attach the eggs to their tails, and male pipefish may do either, depending on their species. [4] The most fundamental difference between the different lineages of the family Syngnathidae is the location of male brood pouch. [ 5 ]
Satomi's pygmy seahorse (Hippocampus satomiae) is the smallest known seahorse in the world with an average length of 13.8 millimetres (0.54 in) and an approximate height of 11.5 millimetres (0.45 in). [4] This member of the family Syngnathidae is found at the Derawan Islands off Kalimantan.