Brief Summary

Read full entry


Synalpheus regalis is a unique species of sponge-dwelling snapping shrimp, and the first described example of eusociality in the sea (Duffy 1996a). Like social insects such as ants and honeybees, Synalpheus regalis lives in large colonies consisting of one breeding female "queen" and typically 100 or more non-breeding workers that jointly defend the sponge against intruders (Duffy 1996b, 2007). Allozyme work has confirmed that most colonies consist of full-sibs produced by the queen and possibly a single male "king."

S. regalis belong to the gambarelloides species group in the genus Synalpheus, and molecular work suggests that eusociality evolved independently at least three times in this group.


Creative Commons Attribution Non Commercial Share Alike 3.0 (CC BY-NC-SA 3.0)

© Hultgren, Kristin

Source: Alpheidae - Snapping Shrimp


EOL content is automatically assembled from many different content providers. As a result, from time to time you may find pages on EOL that are confusing.

To request an improvement, please leave a comment on the page. Thank you!