ARTICULAR FURROW
In cirripeds, groove on tergal margin of scutum or scutal margin of tergum forming part of articulation between the plates [Moore and McCormick, 1969].
(Subclass Cirripedia):
(
) [
Anderson, 1980].
Balanus trigonus: wall plates, exploded; and interior of operculum. [Anderson, 1980]
(Subclass Cirripedia):
Barnacle plate feature: in unstalked form, linear elevation on tergal margin of scutum or scutal margin of tergum. Ridge and furrow of scutum (or tergum) articulate with corresponding structures in tergum (or scutum) [Stachowitsch, 1992].
(Subclass Cirripedia):
Groove near tergal margin of scutum or scutal margin of tergum forming part of articulation between the two valves (balanomorph Cirripedia) [McLaughlin, 1980].