different species of pipefish. While some are monogamous or seasonally monogamous, others are not. Many species exhibit polyandry, a breeding system in which one female mates with two or more males. This tends to occur with greater frequency in internal-brooding species of pipefishes than with external-brooding ones due to limitation in male brood capacity. Polyandrous species are also more likely to have females with complex sexual signals such as ornaments. For example, the polyandrous Gulf pipefish (Syngnathus scovelli) displays considerable sexual dimorphic characteristics such as larger ornament area and number, and body size. Genera Subfamily Syngnathinae (pipefishes and seadragons) Genus Acentronura Kaup, 1853 Genus Amphelikturus Parr, 1930 Genus Anarchopterus Hubbs, 1935 Genus Apterygocampus Weber, 1913 Genus Bhanotia Hora, 1926 Genus Bryx Herald, 1940 Genus Bulbonaricus Herald, 1953 Genus Campichthys Whitley, 1931 Genus Choeroichthys Kaup, 1856 Genus Corythoichthys Kaup, 1853 Genus Cosmocampus Dawson, 1979 Genus Doryichthys Kaup, 1853 Genus Doryrhamphus Kaup, 1856 Genus Dunckerocampus Whitley, 1933 Genus Enneacampus Dawson, 1981 Genus Entelurus Duméril, 1870 Genus Festucalex Whitley, 1931 Genus Filicampus Whitley, 1948 Genus Halicampus Kaup, 1856 Genus Haliichthys Gray, 1859 Genus Heraldia Paxton, 1975 Genus Hippichthys Bleeker, 1849—river pipefishes Genus Histiogamphelus McCulloch, 1914 Genus Hypselognathus Whitley, 1948 Genus Ichthyocampus Kaup, 1853 Genus Idiotropiscis Whitely, 1947 Genus Kaupus Whitley, 1951 Genus Kimblaeus Dawson, 1980 Genus Kyonemichthys Gomon, 2007 Genus Leptoichthys Kaup, 1853 Genus Leptonotus Kaup, 1853 Genus Lissocampus Waite and Hale, 1921 Genus Maroubra Whitley, 1948 Genus Micrognathus Duncker, 1912 Genus Microphis Kaup, 1853—freshwater pipefishes Genus Minyichthys Herald and Randall, 1972 Genus Mitotichthys Whitley, 1948 Genus Nannocampus Günther, 1870 Genus Nerophis Rafinesque, 1810 Genus Notiocampus Dawson, 1979 Genus Penetopteryx Lunel, 1881 Genus Phoxocampus Dawson, 1977 Genus Phycodurus Gill, 1896—leafy seadragon Genus Phyllopteryx Swainson, 1839—seadragons Genus Pseudophallus Herald, 1940—fluvial pipefishes Genus Pugnaso Whitley, 1948 Genus Siokunichthys Herald, 1953 Genus Solegnathus Swainson, 1839 Genus Stigmatopora Kaup, 1853 Genus Stipecampus Whitley, 1948 Genus Syngnathoides Bleeker, 1851 Genus Syngnathus Linnaeus, 1758 Genus Trachyrhamphus Kaup, 1853 Genus Urocampus Günther, 1870 Genus Vanacampus Whitley, 1951 References Sources Attribution External links Reefkeeping.com: PPPPipefish Flagtail Pipefish In The Home Aquarium Ichthyological Bulletin; No. 44: Review of the Indo-Pacific pipefish genus Doryrhamphus Kaup (Pisces: Syngnathidae) with descriptions of a new species and a new subspecies Syngnathidae Taxa named by Charles Lucien Bonaparte