Not all sources agree on the classification of Acentronura species. Female Shortpouch Pygmy Pipehorse are slender and look like pipefish. Males have large bellies and look more like a seahorse.
The species is usually seen in shallow waters (1 m - 20 m) on rubbly bottoms or in areas of sparse algal growth.
- Kuiter, R.H. 2009. Seahorses and their relatives. Aquatic Photographics. Pp. 333.