Figure 1From: Zoological detective stories: the case of the facetotectan crustacean life cycleRepresentatives of Cirripedia. From left to right: a goose barnacle (Thoracica, Lepadidae); an Indo-Pacific giant acorn barnacle (Thoracica, Balanidae); and the externa of a parasitic Sacculina (Rhizocephala) sitting under the abdomen of a crab.Back to article page