TABLE 3 in A new genus and species of barnacle (Cirripedia, Verrucomorpha) associated with vents of the Lau Back-Arc Basin: its gross morphology, inferred first juvenile stage and affinities

TABLE 3. — Comparison of two juvenile and four adult characters in two neoverrucid and one verrucid genus.
NeoverrucaImbricaverrucaVerruca1) Juvenile pedunculate stagesSeveral stages pedunculateLikely several stagesPeduncle vestigial2) Juvenile carinaHigher than wideWider than highHigher than wide3) Adult median latusVestigialWell-developedLost4) Imbricating platesReduced in number, deciduousComplete, well-developedLost5) Fixed scutum & tergumNormal, higher than wideReduced wider than highAs wide as high6) Rostrum & carinaNormal, higher than wide*Reduced, wider highAs wide as high
*R-C gap less on movable side, as in all three genera.