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  1. Britannica
    https://www.britannica.c…

    Barnacle | Anatomy, Habitat & Reproduction | Britannica

    Barnacle, any of more than 1,000 predominantly marine crustaceans of the subclass Cirripedia highly modified for sedentary life. There are about 850 free-living species (all marine) and about 260 species that are internal parasites of crabs and other crustaceans. A brief treatment of cirripedes
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  2. Images of Cirripedia

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    Barnacles - Cirripedia
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    COPEPEDIA photos of Cirripedia : T4000054 : Subclass
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    Northwest Naturalist — Balanus nubilus “Giant Acorn Barnacle” Cirripedia...
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    COPEPEDIA photos of Cirripedia : T4000054 : Subclass
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    COPEPEDIA photos of Cirripedia : T4000054 : Subclass
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    CRUSTACEA (Crustáceo) - Cirripedia, Subclasse Thecostraca: craca ...
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    COPEPEDIA photos of Cirripedia : T4000054 : Subclass
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    CRUSTACEA (Crustáceo) - Thecostraca, Cirripedia. / CRUSTACEA ...
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  3. Springer
    https://link.springer.com/chapter/10.1007/978-3-031-40165-7_8

    Mr. Darwin’s Beloved Barnacles: Using Cirripedes to Understand ...

  4. Taylor & Francis Online
    https://www.tandfonline.com/doi/full/10.1080/23802359.2023.2299087

    Full article: Complete mitochondrial genome of Striatobalanus …

  5. People also ask
    Why are cirripedes important?
    Rather than being an exception to a “law of nature,” cirripedes thus offered evidence of the evolution of reproductive systems that could offer organisms greater procreative success. The importance of this rule became more evident in future chapters.

    Mr. Darwin’s Beloved Barnacles: Using Cirripedes to Understand Evoluti…

    link.springer.com
    What does cirripedes say about resemblance?
    There he repeated his long-held view, as discussed earlier, that grouping species into genera, families, class, etc. relied on more than “mere resemblance”; it reflected real historical relationship, as he said, the “propinquity of descent” (Darwin, 1859/1964, p. 413). Again, cirripedes offered a good illustration:

    Mr. Darwin’s Beloved Barnacles: Using Cirripedes to Understand Evoluti…

    link.springer.com
    How old are cyprids?
    Specimens from the North Sea, one of which measured 73 mm (capitulum length was 40 mm and pedicle length was 33 mm), were discovered 7 months after anchoring a buoy precleared of fouling. Depending on the time of cyprid settlement, the age of these individuals could have ranged from 5 to 7 months (Sneli, 1983).

    Finds of Lepas anatifera Linnaeus, 1758 (Cirripedia, Scalpellomorpha

    link.springer.com
    Did cirripedes have the ability to intercross?
    Hence, Darwin’s concern to show that hermaphroditism in cirripedes, who lived a sedentary existence attached to a host (rock, ship’s hull, conch shell, etc.) did indeed have the ability to intercross with other individuals.

    Mr. Darwin’s Beloved Barnacles: Using Cirripedes to Understand Evoluti…

    link.springer.com
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  6. Nature
    https://www.nature.com/articles/s41598-023-33738-3

    Host specificity and adaptive evolution in settlement ... - Nature

  7. Springer
    https://link.springer.com/article/10.1007/s11756-023-01427-1

    Molecular phylogeny, prevalence and intensity adhesion of

  9. royalsocietypublishing.org
    https://royalsocietypublishing.org/doi/abs/10.1098/rsbl.2022.0550

    From commensalism to parasitism within a genus-level clade of …

  10. obis.org
    https://portal.obis.org/dataset/a126c30a-ed96-40ba-b0ae-31a1c812e…

    Cirripedia distribution data from: Deep-sea fauna of European …

  11. Springer
    https://link.springer.com/article/10.1134/S2075111723040197

    Finds of Lepas anatifera Linnaeus, 1758 (Cirripedia, …

  12. Wiley Online Library
    https://onlinelibrary.wiley.com/doi/10.1002/jmor.21635

    Animal Morphology Journal - Wiley Online Library

  13. Oxford University Museum of Natural History
    https://oumnh.ox.ac.uk/publication/1995597/ora-hyrax

    The carcinological <i>oeuvre</i> of Charles Spence Bate …