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Topic: Cirripedia


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In the News (Wed 17 Sep 14)

  
  CRUSTACEA - LoveToKnow Article on CRUSTACEA
The most peculiar modification, perhaps, is that found in the Cirripedia (Thyrostraca), in the larvae of which the antennules develop irgo organs of attachment, bearing the openings of the cement-glands, and becoming, in the adult, involved in the attachment of the animal to its support.
In the Cirripedia, however, they are vascular processes from the inner surface of the mantle or shell-fold, and in some Ostracoda they are outgrowths from the sides of the body.
The barnacles and their allies, forming the group Cirripedia or Thyrostraca, sometimes treated as a separate sub-class, are distinguished by being sessile in the adult state, the larval antennules serving as organs of attachment, and the antennae being lost.
www.1911encyclopedia.org /C/CR/CRUSTACEA.htm   (12593 words)

  
 MavicaNET - Cirripedia   (Site not responding. Last check: 2007-10-20)
Cirripedia nauplius larvae swim with the help of three pairs of extremities.
In the middle of the frontal area of the carapace the nauplius eye is situated.
Cirripedia nauplius larvae are usually quite distinct with their triangular shape, long frontal-lateral horns and usually an outgrowth that projects backwards.
www.mavicanet.com /lite/ukr/17809.html   (331 words)

  
 Jens Høeg
Pérez-Losada M; Høeg JT; Kolbasov GA; Crandall KA (2002) Reanalysis of the relationships among the Cirripedia and the Ascothoracida and the phylogenetic position of the Facetotecta (Maxillopoda: Thecostraca) using 18S rDNA sequences.
Settlement behavior and antennulary biomechanics and in cypris larvae of Balanus amphitrite (Crustacea: Thecostraca: Cirripedia).
The unusual flotation collar in nauplii of parasitic barnacles (Crustacea: Cirripedia: Rhizocephala).
www.bi.ku.dk /staff/person.asp?ID=92   (266 words)

  
 Introduction to the Cirripedia   (Site not responding. Last check: 2007-10-20)
Barnacles are more familiar members of the Cirripedia.
There are members of Cirripedia that exist as parasites.
Needless to say, the Cirripedia has a good fossil record.
www.ucmp.berkeley.edu /arthropoda/crustacea/maxillopoda/cirripedia.html   (101 words)

  
 BARNACLES: Class Cirripedia
The Cirripedia belong to the class Maxillopoda, an ancient form of relatively small, primarily marine crustaceans which today, are presently known by 11 subclasses, five of which are completely parasitic.
Out of the six nonparasitic subclasses, the Ostenocarida and Skaracarida are extinct, dating back to the Cambrian period, and the Mystacocarida are now generally restricted to a narrow band of the marine interstitial environment.
On the other hand, of the primarily nonparasitic groups, the Ostracoda and Cirripedia (from Cambrian period) and Copepoda are very diverse and occupy a wide variety of aquatic habitats.
academics.smcvt.edu /dfacey/AquaticBiology/Coastal%20Pages/Barnacles.html   (1383 words)

  
 Darwin, A monograph on the fossil Lepadididæ   (Site not responding. Last check: 2007-10-20)
If fossil cirripedia had, like most recent species, very wide horizontal or geographical ranges, then, in accordance with a law now generally admitted, a considerable vertical range in some of the species is not improbable.
This is likewise the case with the Cirripedia, and it is only the wonderful elongation of the anterior part of the head, its fixed condition, and the absence of external eyes and antennæ, which gives to the Cirripedia their peculiar character, and has hitherto prevented the homologies of these parts from having been recognised.
The cementing substance is brought to its point of debouchment by a duct, leading from a gland, which (and this is perhaps the most remarkable point in the natural history of the Class) is part of and continuous with the branching ovaria.
pages.britishlibrary.net /charles.darwin4/fos_lepadidae/fos.lep.html   (12940 words)

  
 The Cirripedia Cup
At least once a year, and not less than 30 days before the annual ECSA scheduling coordinating meeting, the Cirripedia Cup coordination representative shall contact the current fleet captain, or designee, for each participating organization and ascertain if there is any need to make changes to the Policy and Rules.
This is the updated version of the The Cirripedia Cup Policies and Rules as agreed upon by all the participating yacht clubs in Brevard County.
This is now the official policies and rules for the Cirripedia Cup until such time as further changes may be voted upon by the fleet representatives.
www.sail-race.com /ecsa/cirripediacup.htm   (1665 words)

  
 Marine Phyla Pages   (Site not responding. Last check: 2007-10-20)
There are approximately 1000 species belonging to four groups within the Cirripedia.
In cirripeds the maxillopodan body plan is so different from the general crustacean body plan that it is almost unrecognizable.
These limbs are swept down through the water toward the mouth where specialised appendages wipe off and sort the particles.
www.coastal.edu /science/marine/msci302/Marine%20Phyla%20Project/cirripedia.htm   (371 words)

  
 Avg virus definition file dowload information online   (Site not responding. Last check: 2007-10-20)
The entire series of Nauplius-stages avg virus definition file dowload are passed through by the free Copepoda, are in this case completely over-leapt aries adult video.
A final and very peculiar section of the Crustacea is formed by the two orders of the Cirripedia and Rhizocephala.* (* The most various opinions prevail as to the position of the Cirripedia.
I would not combine the Rhizocephala with the Cirripedia, as Liljeborg has done, but place them in opposition as equivalent, like the Amphipoda and Isopoda.
avg-virus-definition-file-dowload.qraptor.sk   (504 words)

  
 ScienceDaily -- Browse Topics: Science/Biology/Flora_and_Fauna/Animalia/Arthropoda/Crustacea/Cirripedia   (Site not responding. Last check: 2007-10-20)
Lepadomorph and Verrucomorph barnacles (Cirripedia) of Florida and adjacent waters, with an addendum on the Rhizocephala (Bulletins of American paleontology)
The barnacles of the Balanus amphitrite complex (Cirripedia, Thoracica) (Zoologische verhandelingen, uitg.
Cirripedia of Florida and surrounding waters (Acrothoracica and Rhizocephala) (Bulletins of American paleontology)
www.sciencedaily.com /directory/Science/Biology/Flora_and_Fauna/Animalia/Arthropoda/Crustacea/Cirripedia   (275 words)

  
 Cat 56: Crustacea
Contains 7 papers on crustaceans (Cirripedia Thoracica: Chionelasmatoidea and Pachylasmatoidea (143 p.), Decapoda: Revision Polychelidae, Decapoda: Porcellanopagurus and Solitariopagurus, Decapoda genera Crosnierita, Munida and Paramunida, Decapoda: Ethusinae, Decapoda: Palicidae (169 p.), Pycnogonida South Pacific).
Cirripedia Thoracica from Tropical W. Africa / Mysidacea from the Coasts of Tropical W. Africa / Pagurides de l’Afrique occidentale / Euphausiacea from Tropical W. Africa.
Cirripedia Thoracica von Norwegen und dem Norwegischen Nordmeere.
www.euronet.nl /users/backhuys/Cat56.htm   (6954 words)

  
 :: WILLIAM NEWMAN ::   (Site not responding. Last check: 2007-10-20)
A new coral-inhabiting barnacle from Taiwan (Cirripedia: Pyrgomatiedae)., Zoological Studies 38(4):387-390.
The puzzling appearance of specimens of a hydrothermal vent barnacle from the Manus Basin, Eochionelasmus ohtiai Yamaguchi, 1990, when brought on deck of the R/V "Sonne.", Proceedings of the 4th International Crustacean Congress, Amsterdam 1:195-199.
Pyrgoma kuri Hoek, 1913; a case study in morphology and systematics of a coral barnacle (Cirripedia: Balanomorpha)., Contributions to Zoology.
sio.ucsd.edu /rab/act_detail.cfm?state=%26%28%3E%2B%2CT%2C%3B%5F%0A   (153 words)

  
 Darwin, A Monograph of the Sub-class Cirripedia. Balanidae   (Site not responding. Last check: 2007-10-20)
by John van Wyhe Ph.D. Darwin, A Monograph of the Sub-class Cirripedia, with figures of all the species.
MY former volume, published by the Ray Society, treated only of the Lepadidæ, one family of the Cirripedia: I was induced to print it from having the materials ready, though this partial publication has been in some respects incovenient.
Every locality, under each species, is given from specimens ticketed in a manner and under circumstances appearing to me worthy of confidence,—the specific determination being in each case made by myself.
pages.britishlibrary.net /charles.darwin4/liv_balanidae/balanidae_fm.html   (2491 words)

  
 Darwin Correspondence Project: Introduction to Volume 4: 1847-1850   (Site not responding. Last check: 2007-10-20)
This proposal, no doubt strengthened by his own widening interest and by Louis Agassiz's opinion that such a monograph was a "desideratum" (letter to J. Agassiz, 22 October 1848), was accepted by Darwin, and he immediately took steps to borrow as many collections of both fossil and recent specimens as possible.
Darwin believed he had found a series of forms illustrating the gradual emergence of separate sexes in barnacles: Ibla quadrivalvis and Scalpellum vulgare represented a stage where the male organs were still present in the hermaphrodite but were superfluous and reduced owing to the presence of the minute "complemental" males, as Darwin called them.
The sexual relations of barnacles seemed to him to mirror the probable emergence of dioecious plants from monoecious forms (Living Cirripedia (1851): 214; (1854): 29, 528 n.) and, at another level, to explain the existence of structures that properly belonged in only one of the sexes appearing as vestigial or rudimentary organs in the other.
www.lib.cam.ac.uk /Departments/Darwin/intros/vol4.html   (3601 words)

  
 AUT - Research Publications - 2000   (Site not responding. Last check: 2007-10-20)
A new species of Austrobalanus (Cirripedia, Thoracica) from Eocene erratics, Mount Discovery, McMurdo Sound, East Antarctica.
(Cirripedia: Thoracica) from the Brothers Caldera, South-west Pacific Ocean.
The other, a fossil, is however tentatively ascribed to the genus and is known in rocks of Early Jurassic age.
www.aut.ac.nz /research/research_institutes/eos/research/biod_2000_print.htm   (2636 words)

  
 Cirripedia   (Site not responding. Last check: 2007-10-20)
Antarctic Cirripedia;: Monographic account based on specimens collected chiefly under the United States Antarctic research program, 1962-1965 (Antarctic research series)
The barnacles (Cirripedia): Contained in the collections of the U. National Museum, (Smithsonian institution.
Miocene and pleistocene cirripedia from Haiti ([Geological pamphlets)
cirripedia.idoneos.com   (278 words)

  
 Untitled Document
Reproductive patterns of Pollicipes pollicipes (Cirripedia: Pedunculata) in the SW coast of Portugal.
Growth of Pollicipes pollicipes (Gmelin, 1790) (Cirripedia, Lepadomorpha) on the SW coast of Portugal.
(Crustacea: Cirripedia) in a rocky shore of SW Portugal Thesis of licentiateship in Biology, University of Évora.
www.ciemar.uevora.pt /inves/iv_in/m_ivinpl.html   (1861 words)

  
 Searching Dataset GLOBAL   (Site not responding. Last check: 2007-10-20)
Variations in population structure in the genus Tetraclita (Crustacea: Cirripedia) between temperate and tropical populations.
Abundance of Petrolisthes armatus (Crustacea: Porcellanidae) on a tropical estuarine intertidal rocky beach, Gulf of Nicoya estuary, Costa Rica.
Ceratoconcha paucicostata, a new species of coral inhabiting barnacle (Cirripedia, Pyrgomatidae) from the western Atlantic.
www.ots.ac.cr /rdmcnfs/datasets/exsrch.phtml?ds=global&qbe=11375   (3791 words)

  
 Darwin Correspondence Project: Introduction to Volume 5: 1851-1855   (Site not responding. Last check: 2007-10-20)
Nevertheless, his efforts were rewarded with the first public recognition of his scientific achievements when, in 1853, he was awarded a Royal Medal by the Royal Society of London for his contributions to geology and natural history, and in particular his Cirripedia work.
The next two years were devoted to the anatomy and classification of sessile cirripedes and culminated in Living Cirripedia (1854) and Fossil Cirripedia (1854), again published by the Ray Society and the Palaeontographical Society.
His work on the Cirripedia also brought prominently into view the occurrence of aberrance through the effects of extinction.
www.lib.cam.ac.uk /Departments/Darwin/intros/vol5.html   (2191 words)

  
 Search Results for cirripedia - Encyclopædia Britannica
The Cirripedia belong to the class Maxillopoda, an ancient radiation of relatively small, primarily marine crustaceans presently known by 11 subclasses, five of which (Branchiura, Facetotecta,...
Charles Darwin, A Monograph on the Subclass “Cirripedia,” 2 vol.
Any of a majority of the 1,000 species of the subclass Cirripedia of...
www.britannica.com /search?query=cirripedia&submit=Find&source=MWTEXT   (273 words)

  
 VLIZ Library acquisitions 102/10 May 2002
Buschbaum, C. Recruitment patterns and biotic interactions of barnacles (Cirripedia) on mussel beds (Mytilus edulis L.) in the Wadden Sea.
Pp 32-42 in Buschbaum, C. (Ed.): Recruitment patterns and biotic interactions of barnacles (Cirripedia) on mussel beds (Mytilus edulis L.) in the Wadden Sea.
Pp 43-61 in Buschbaum, C. (Ed.): Recruitment patterns and biotic interactions of barnacles (Cirripedia) on mussel beds (Mytilus edulis L.) in the Wadden Sea.
www.vliz.be /docs/libac/ac102.htm   (1888 words)

  
 Darwin, A Monograph of the Sub-class Cirripedia. Balanidae   (Site not responding. Last check: 2007-10-20)
I can, however, hardly persuade myself that the articulated membrane, under the free part of the mandibles, which has now been figured and described, has no homological signification; and the fusion of the palpus and labrum seems too plain to be mistaken.
Hence I must conclude that the mouth, in the Cirripedia, does truly exhibit a compounded structure of a very peculiar nature.
In Van de Hoeven's figure of the nervous system in Limulus, there is seen to be no chain of thoracic ganglions; all the nerves rising from the circa-oesophageal collar; but this, on the other hand, seems hardly developed into a ganglion.
pages.britishlibrary.net /charles.darwin4/liv_balanidae/balanidae02.html   (10831 words)

  
 Cirripedia
Cladistic analysis of the Cirripedia Thoracica (Crustacea: Thecostraca).
TEM studies of lattice organs of cirripede cypris larvae (Crustacea, Thecostraca, Cirripedia).
Reanalysis of the relationships among the Cirripedia and the Ascothoracida and the phylogenetic position of the Facetotecta (Maxillopoda: Thecostraca) using 18S rDNA sequences.
tolweb.org /tree?group=Cirripedia   (413 words)

  
 Cirripedia: Systematics
Likewise there is a good fossil record for the cirripeds stretching back as far as the middle Cambrian.
Darwin, C. monograph on the subclass Cirripedia with figures of all the species.
Darwin, C. monograph on the fossil Lepadidae, or pedunculated cirripedia of Great Britain.
www.ucmp.berkeley.edu /arthropoda/crustacea/maxillopoda/cirripediasy.html   (418 words)

  
 barnacle --  Encyclopædia Britannica
also called Cirripede any of a majority of the 1,000 species of marine crustaceans of the subclass Cirripedia.
The subclass Cirripedia is divided into two superorders, Acrothoracica and Thoracica.
Members of the Acrothoracica are known as burrowing barnacles because they burrow into...
www.britannica.com /eb/article-9013403?tocId=9013403   (600 words)

  
 Aquascope|Facts|Cirripedia nauplius larva   (Site not responding. Last check: 2007-10-20)
Appearance: Cirripedia nauplius larvae swim with the help of three pairs of extremities.
Many larvae are eaten by other creatures that eat suspended particles.
Classification: Cirripedia nauplius larvae are crustaceans under the arthropod group.
www.vattenkikaren.gu.se /fakta/arter/crustace/cirriped/cirrnaup/cirrnae.html   (130 words)

  
 Lycos Search Results: web results for cirripedia  1 thru 10 of 9,770
The Cirripedia belong to the class Maxillopoda, an ancient form of relatively small, primarily marine crustaceans which today, are presently known by...
Cracas / Barnacles (Crustacea: Cirripedia) Desde/Since: 07/ 2000.
The cirripedes (barnacles) are the only sessile group of crustaceans and they differ...
search.lycos.com /?lpv=1&loc=searchhp&query=cirripedia   (177 words)

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