Summary It is very rigid, heavily calcified, and has broadly triangular arms. This species typically eats [[Mytilus trossulus|Pacific Blue Mussel (''Mytilus trossulus'')]] and barnacles ([[Balanus|''Balanus'' spp.]])
From Natural History of Southeast Alaska
A list of all pages that have property "Summary" with value "It is very rigid, heavily calcified, and has broadly triangular arms. This species typically eats [[Mytilus trossulus|Pacific Blue Mussel (''Mytilus trossulus'')]] and barnacles ([[Balanus|''Balanus'' spp.]])"
