Image of Hydractinia laevispina Fraser 1922

Description:

Hydractinia laevispina growing as an extension to a small gastropod shell inhabited by the hermit crab Labidochirus splendescens. Collected from 60-100 m depth in the San Juan Channel, July 2010. The shell is to the bottom right and the extension which has grown beyond the shell is to the upper left. Total colony width about 2 cm. (Photo by: Dave Cowles )