Temporal range: 55.8–0 Ma Eocene to Present
Solenostomus, also known as ghost pipefishes, false pipefishes or tubemouth fishes, is a genus of fishes in the order Syngnathiformes. Solenostomus is the only genus in the family Solenostomidae, and includes six currently recognized species. Ghostpipefishes are related to pipefishes and seahorses. They are found in tropical waters of the Indo-Pacific.
The animals, none of which are longer than 15 centimetres (5.9 in), float near motionlessly, with the mouth facing downwards, around a background that makes them nearly impossible to see. They feed on tiny crustaceans, sucked inside through their long snout. They live in open waters except during breeding, when they find a coral reef or muddy bottom, changing color and shape to minimize visibility.
In many respects, they are similar to the pipefishes, but can be distinguished by the presence of pelvic fins, a prominent, spiny, dorsal fin, and star-shaped plates on the skin. Unlike true pipefish, female ghostpipefishes use their enlarged pelvic fins to brood their eggs until they hatch.
- Solenostomus armatus M. C. W. Weber, 1913 (long-tailed ghost pipefish or armored pipefish)
- Solenostomus cyanopterus Bleeker, 1854 (robust ghost pipefish)
- Solenostomus halimeda J. W. Orr, Fritzsche & J. E. Randall, 2002 (Halimeda ghost pipefish)
- Solenostomus leptosoma S. Tanaka (I), 1908 (delicate ghost pipefish)
- Solenostomus paegnius Jordan & Thompson, 1914 (roughsnout ghost pipefish)
- Solenostomus paradoxus (Pallas, 1770) (ornate ghost pipefish or harlequin ghost pipefish)
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- Sepkoski, Jack (2002). "A compendium of fossil marine animal genera". Bulletins of American Paleontology. 364: 560. Retrieved 8 January 2008.
- Family Solenostomidae  FishBase. Accessed 1 February 2015.
- Orr, J.W. & Pietsch, T.W. (1998). Paxton, J.R. & Eschmeyer, W.N., eds. Encyclopedia of Fishes. San Diego: Academic Press. p. 169. ISBN 0-12-547665-5.
- "Solenostomus". Integrated Taxonomic Information System. Retrieved 6 June 2006.
- Tim Flannery and Peter Schouten. Amazing Animals: Extraordinary Creatures and the Fantastic Worlds They Inhabit. New York: Atlantic Monthly Press, 2004. Page 116-117.
- Orr, JW and Fritzsche, RA. 1993. Revision of the Ghost Pipefishes, Family Solenostomidae (Teleostei: Syngnathoidei). Copeia 1993:168-182.