A monotypic genus endemic to southern Australia. Body very elongate, trunk shallow; head aligned with body; snout long, compressed laterally; longitudinal opercular ridge absent in adults, usually crossing anterior half of opercle in young; STR and STAR discontinuous near rear of dorsal‑fin base; ITR and ITAR continuous; LTR not confluent with tail ridges; eggs brooded on open undersurface of trunk; tail not prehensile; dorsal fin much closer to tip of tail than head with base of moderate length; anal fin very small, below centre of dorsal fin; caudal fin more or less lanceolate, very long in undamaged individuals; adult females with median longitudinal fleshy fin‑fold under tail; pectoral fins present.
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Kaup, J.J. 1853. Uebersicht der Lophobranchier. Archiv für Naturgeschichte 19(1): 226-234
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Kuiter, R.H. 1993. Coastal Fishes of South-eastern Australia. Bathurst : Crawford House Press 437 pp.
Kuiter, R.H. 1996. Guide to sea fishes of Australia. A comprehensive reference for divers and fishermen. Sydney, NSW, Australia : New Holland Publishers xvii, 434 pp.
Kuiter, R.H. 2000. Seahorses, Pipefishes and Their Relatives. Chorleywood, UK : TMC Publishing 240 pp.
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Kuiter, R.H. 2009. Seahorses and their relatives. Seaford, Australia : Aquatic Photographics pp. 331.
Macleay, W.J. 1881. Descriptive catalogue of the fishes of Australia. Part 4. Proceedings of the Linnean Society of New South Wales 1 6(2): 202-387 [sometimes cited as 1882]
Munro, I.S.R. 1961. Handbook of Australian fishes. Nos 1–42. Australian Fisheries Newsletter 15–17, 19, 20: 1-172 [published as separates 1956–1961]
Paxton, J.R., Gates, J.E., Hoese, D.F. & Bray, D.J. 2006. Syngnathidae. pp. 810-846 in Beesley, P.L. & Wells, A. (eds). Zoological Catalogue of Australia. Volume 35 Australia : ABRS & CSIRO Publishing Parts 1-3 2178 pp.