In Cirripedia (Balanomorpha), simple or arborescent lines Seen running between epicuticle of outer lamina through longitudinal septa into inner lamina, when paries is sectioned parallel to base [Moore and McCormick, 1969].
Simple or arborescent lines extending between epicuticle of outer lamina through longitudinal septa into inner lamina in sections parallel to base in some balanomorph Cirripedia [McLaughlin, 1980].
(Subclass Cirripedia):
Barnacle plate feature: when plate of unstalked form is sectioned parallel to base, line running from outer to inner lamina through longitudinal septum. (simple, arborescent) [Stachowitsch, 1992].
Crustacea glossary. Natural History Museum of Los Angeles County. 2011.