Acentronura australe Waite & Hale, 1921 The southern little pipehorse (Idiotropiscis australe) is a species of fish in the family Syngnathidae.

Its natural habitats are open seas, shallow seas, subtidal aquatic beds, and coral reefs.

[2] It camouflages amongst species of red algae.

[3] It is threatened by habitat loss.

This Syngnathiformes-related article is a stub.