Chthamalus anisopoma

Chthamalus anisopoma
Scientific classification
Kingdom:	Animalia
Phylum:	Arthropoda
Subphylum:	Crustacea
Class:	Thecostraca
Subclass:	Cirripedia
Order:	Balanomorpha
Family:	Chthamalidae
Genus:	Chthamalus
Species:	C. anisopoma
Binomial name
	Chthamalus anisopoma; Pilsbry, 1916

Chthamalus anisopoma is a species of intertidal barnacle. Indigenous to the northern Gulf of California, adult Chthamalus anisopoma are found on exposed shores between 0.0 and 2.0 m above mean low tide. The species is typically absent in areas protected from wave splash.^[1] Notably, Chthamalus anisipoma exhibits predator-mediated plasticity in the growth of its calcareous test. In the presence of the carnivorous gastropod Acanthina angelica, the barnacle's typical conical growth form is altered to appear bent over, with the operculum perpendicular to the substrate. The alternate form is more resistant to predation.^[2]

References[]

^ Peter T. Raimondi (1991). "Settlement behavior of Chthamalus anisopoma larvae largely determines the adult distribution". Oecologia. 85 (3): 349–360. doi:10.1007/BF00320610.
^ Curt M. Lively (1986). "Predator-induced shell dimorphism in the acorn barnacle Chthamalus anisopoma". Evolution. 40: 232–242. doi:10.1111/j.1558-5646.1986.tb00466.x.

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[1] Peter T. Raimondi (1991). "Settlement behavior of Chthamalus anisopoma larvae largely determines the adult distribution". Oecologia. 85 (3): 349–360. doi:10.1007/BF00320610.

[2] Curt M. Lively (1986). "Predator-induced shell dimorphism in the acorn barnacle Chthamalus anisopoma". Evolution. 40: 232–242. doi:10.1111/j.1558-5646.1986.tb00466.x.

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