COMPOUND ROSTRUM
In cirripeds (Balanomorpha), projection formed by fusion of rostrolateral plates, forming compound compartment overlapping latera, and on which radii may develop (cf. rostrum) [Moore and McCormick, 1969].
(Subclass Cirripedia):
(
) [
Anderson, 1980].
Balanus trigonus: apical view; left lateral view; and operculum, body, and branchiae. [Anderson, 1980]
(Subclass Cirripedia):
(
) [
Anderson, 1980].
Balanus trigonus: wall plates, exploded; and interior of operculum. [Anderson, 1980]
(Subclass Cirripedia):
Compartmental plate formed by fusion of rostrolaterals with rostrum or of rostrolaterals, with rostrum missing (balanomorph Cirripedia) [McLaughlin, 1980].
(Subclass Cirripedia):
Rostrum [Stachowitsch, 1992].