Fishes - Australian Museum Fish Site

Find a Fish

Upside-down Pipefish
Heraldia nocturna Paxton, 1975

Upside-down Pipefish
An Upside-down Pipefish at a depth of 12 m, Fly Point Marine Reserve, Port Stephens, New South Wales, April 2007. Photo © D. & L. Atkinson. View larger image.
Upside-down Pipefish
The head of the fish in the top image. Photo © D. & L. Atkinson. View larger image.
Upside-down Pipefish
The caudal fin of the fish in the top image. Photo © D. & L. Atkinson. View larger image.
Upside-down Pipefish
Upside-down Pipefish at Port Stephens, New South Wales. Photo © D. & L. Atkinson.

The Upside-down Pipefish can be recognised by its very large caudal fin with incised membrane, and raised body ridges along the body.

There are two distinct forms. The east coast form (pictured) is recorded from northern to southern New South Wales. It is dark brown to black with or without pale blotches. The south coast form is a mottled yellow-brown with light markings and a smaller caudal fin. It is recorded from the central coast of Victoria to southern Western Australia.

The Upside-down Pipefish grows to 10 cm in length.

It lives in protected bays and estuaries down to a depth of about 20m, where it is usually seen in pairs in caves and under ledges. It is often seen swimming upside-down, hence the common name.

Heraldia nocturna was described by Australian Museum Research Fellow, Dr J. Paxton in 1975. The holotype is registered in the Australian Museum Fish Collection (AMS I.17328-001).

Further Reading

  1. Kuiter, R.H. 1993. Coastal Fishes of South-Eastern Australia. Crawford House Press. Pp. 437.
  2. Kuiter, R.H. 1996. Guide to Sea Fishes of Australia. New Holland. Pp. 433.
  3. Kuiter, R.H. 2000. Seahorses, Pipefishes and their Relatives. A Comprehensive Guide to Syngnathiformes. TMC Publishing Pp. 240.
  4. Paxton, J.R. 1975. Heraldia nocturna, a new genus and species of pipefish (family Syngnathidae) from eastern Australia with comments on Maroubra perserrata Whitley. Proceedings of the California Academy of Science, 40 (15):439-447.
australian museum onlineabout the museumresearch and collectionsfeaturesexplore