Definitions

In cirripeds, one of pair of compartment plates lying between and overlapping rostrum and laterals, having radii on both rostral and cardinal sides and tending to fuse with rostrum; See Latus (rostral), e. [Moore and McCormick, 1969]
(Taxon-specific: Subclass Cirripedia) Barnacle shell plate: in symmetrical unstalked form, paired anterolateral plate, one between rostrum and each lateral plate. Consists of median paries and lateral radii. May be fused with rostrum or with each other (i.e., rostrum absent) to form compound rostrum. [Stachowitsch, 1992]
(Taxon-specific: Subclass Cirripedia) One pair of compartmental plates typically overlapping rostrum on each side, with radii on both sides, somtimes fused with rostrum, laterally or to eachother; homologous with lepadomorph rostral latus. [McLaughlin, 1980]