Phronima is a small, deep sea hyperiid amphipod of the family Phronimidae. It is found throughout the world's oceans, except in polar regions. The body of Phronima is semi-transparent. Females attack salps, using their mouth and claws to eat the animal and hollow out its gelatinous shell. She then enters the barrel and lays her eggs inside. She then propels the barrel through the water as the larvae develop, providing them with fresh food and water.
The genus Phronima contains the following species:
- Phronima colletti Bovallius, 1887
- Phronima curvipes Vosseler, 1901
- Phronima pacifica Streets, 1887
- Phronima sedentaria (Forsskål, 1775) (type species)
- Phronima solitaria Guérin-Méneville, 1836
- Phronima stebbingi Vosseler, 1901
- James K. Lowry (2003). "Phronimidae". Peracarida : Amphipoda, Cumacea, Mysidacea. Volume 2, Part 2 of Crustacea: Malacostraca in Zoological catalogue of Australia. CSIRO Publishing. pp. 339–344. ISBN 978-0-643-06902-2.
- Damond Benningfield (June 8, 2008). "Phronima". Science and the Sea. University of Texas Marine Science Institute. Retrieved October 11, 2010.
- WoRMS (2010). "Phronima Latreille, 1802". In J. Lowry. World Amphipoda database. World Register of Marine Species. Retrieved October 11, 2010.
- The Blue Planet, episode 2, about 4 minutes after the start
- "Deep Sea Creature That Inspired the Alien Series". deepseacreatures.org. Retrieved 29 October 2012.
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