Figure 3From: Evolutionary diversification of secondary mechanoreceptor cells in tunicataComparative schematic depictions of secondary sensory cells of representatives of all tunicate suborders and of outgroups. Microvilli are drawn as shorter sticks compared to stereovilli, and cilia are represented by the longest sticks. Light green: supporting and secretory cells; light yellow: secondary sensory cells (modified from [3, 5, 7]).Back to article page