Taxon Description (Wikipedia)
Chthamalus montagui, common name
Montagu's stellate barnacle, is a species of acorn barnacle common on rocky shores in South West England, Ireland, and Southern Europe
[ ] .
The vertical distribution of
C. montagui overlaps with
Chthamalus stellatus with the specific prevalence of one species over another in a given locale possibly related to differences in the distribution of the species' larval stages
[ ].
full article at Wikipedia