You are here
Home » Cirripedia » Cirripedia » Thoracica Darwin, 1854 » Pedunculata Lamarck, 1818 » Scalpelliformes » Scalpellidae » Meroscalpellinae » Annandaleum » Annandaleum japonicum - (Hoek, 1883)
Discover collection holdings
Cirripedia
Annandaleum japonicum (Hoek, 1883)
Nomenclature
-
Subfamily: MeroscalpellinaeGenus: Annandaleum
Species:
Annandaleum japonicum (Hoek, 1883)
Usage:
valid
SUMMARY
The taxonomic status and morphological variability of A. japonicum and A. j. biramosum are in need of re-evaluation because significant intraspecific variation in plate morphology is apparent which seems to be dependent on body size. Changes during ontogenetic development include: the loss of the hairs on the external cuticle; the tergum becomes clearly bifurcate; the scutum develops two or three distinct branches; the shape of the carinal latus changes from quadrilateral to triangular or v-shaped, the rostral margin may show incipient branching; the shape of the upper latus changes from pentagonal to triangular, the carinal margin becomes branched; and the rostral latus carinal margin is branched.