Jaeger, 1833
B. argus is a sea cucumber with a grey or grey-brown upper surface with a striking pattern of spots ringed with white. The lower surface is light yellow-brown. Cuvierian tubules are readily ejected. The spicules are branched rods (B. argus spicules[/l], [l]b_argus_spicules_2.jpgB. argus spicules 2[/l]). B. argus is found on [l][m]Glossary[/m][r]Reef[/r]reefs and in exposed areas and is often common.