Description: English: Decorator crab (Achaeus spinosus ?) covered in hydropolypes on Ianthella basta (Elephant ear sponge). This crab is using hydropolypes to cover its shell in order to provide protection from predators. The crab benefits from the hydropolype's sting while the hydropolypes benefit from the crab's mobility allowing it to feed in a larger area. Date: 11/05/06. Source: Own work. Author:
Nhobgood Nick Hobgood. Camera location
8° 28′ 35.32″ S, 125° 54′ 30.48″ E View all coordinates using:
OpenStreetMap -8.476478; 125.908467.