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Cirripedia | |
 | Skrá / Náttúra / Líf / Dýr (Animalia) / Liðdýr (Arthropoda) / Krabbadýr (Crustacea) / Maxillopoda / Cirripedia |
| Skrá / Náttúra / Líf / Dýr (Animalia) / Liðdýr (Arthropoda) / Krabbadýr (Crustacea) / List of classes and orders / Cirripedia |
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Cirripede - Britannica.com
Any of the marine crustaceans of the subclass Cirripedia (class Maxillopoda). The best known are the barnacles. Adults of cirripedes other than barnacles are internal parasites of marine invertebrates such as crabs, jellyfish, and starfish and have no popular name. [eng] |
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Barnacles of Southern Australia
To the uninitiated barnacles might seem to be molluscs, like limpets which they superficially resemble and with whom some share space. This is because the chalky plates which enclose the crustacean body are vaguely limpet-shaped. Inside the “shell” however is a segmented body with six pairs of segmented legs used for filter-feeding from the water. Some odd parasitic crustaceans share a similar larval stage, called a “cyprid”, with more familiar barnacles. All use the first antennae as a for m of attachment, the barnacles attach themselves upside down on a rock with their feet in the water. [eng] |
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Aquascope: Cirripedia nauplius larva
Cirripedia nauplius larvae swim with the help of three pairs of extremities. The foremost two pairs develope first into antennae. The third pair became components of the upper jaw (mandibles). 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. Picture. [eng] |
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Barnacles
Barnacles cling to hard substratum and stay attached to them as they filter feed. Many are found in the intertidal region where pressure is high from predation, desecation, wave action, and competition for space. [eng] |
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Barnacle <i>Balanus eburneus</i>
Ivory barnacle, Balanus eburneus (Photo). [eng] |
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Clase Cirripedia
Dentro de esta clase se incluyen a los percebes, esto son animales sésiles marinos. Los cirrípedos son, en su mayoría, animales de vida libre que se adhieren a conchas, rocas, u otros objetos; también algunos son comensales de diferentes animales o parásitos. [spa] |
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