Chthamalus stellatus (Poli, 1791)
(Poli’s Stellate Barnacle)

Taxonomic hierarchy:
SpeciesChthamalus stellatus (Poli’s Stellate Barnacle)
FamilyCHTHAMALIDAE (a family of acorn barnacles)
SuperfamilyCHTHAMALOIDEA (a superfamily of crustaceans)
SuborderBALANOMORPHA (a suborder of acorn barnacles)
OrderSESSILIA (acorn barnacles)
SuperorderTHORACICA (acorn and goose barnacles)
InfraclassCirripedia (barnacles)
SubclassTHECOSTRACA (barnacles)
ClassMAXILLOPODA (a class of crustaceans)
SubphylumCRUSTACEA (crustaceans)
PhylumARTHROPODA (arthropods)
SuperphylumECDYSOZOA (skin shedders)
CladeBilateria (bilaterally symmetrical animals)
SubkingdomEUMETAZOA (metazoans)
KingdomANIMALIA (animals)
DomainEukaryota (eukaryotes)
LifeBIOTA (living things)

Identification Works

AuthorYearTitleSource

Cyprid

Lilley, M.K.S. 2006 Chthamalid cyprid identification - a photographic guide Marine Biological Association

Nauplius

Burrows, M.T., Hawkins, S.J. & Southward, A.J.

1999 Larval development of the intertidal barnacles Chthamalus stellatus and Chthamalus montagui JMBA 79: 93-101.

Chthamalus stellatus (Poli’s Stellate Barnacle) may also be included in identification literature listed under the following higher taxa:

NBNNBN (data.nbn.org.uk) has a distribution map for Chthamalus stellatus (Poli’s Stellate Barnacle)
BioInfoBioInfo (www.bioinfo.org.uk) has 1 host/parasite/foodplant and/or other relationships for Chthamalus stellatus (Poli’s Stellate Barnacle)

Micropyle opening bright orange. Aperture usually oval, but can approach or overlap with kite shape usually found in C. montagui.

Mainly on lower shore of exposed headlands

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