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Pluteus
(redirected from plutei)

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pluteus [′plüd·ē·əs]
(invertebrate zoology)
The free-swimming, bilaterally symmetrical, easel-shaped larva of ophiuroids and echinoids.
pluteus
1. A low barrier placed between columns.
2. A screen of pierced marble which surrounds the choir or sanctuary of a church.
Pluteus 

the larva of a sea urchin or ophiuran. A pluteus has paired appendages, or arms, inside which are calcareous skeletal needles. The larva swims by means of its arms, which are fringed with ciliated epithelium. Only part of its body is metamorphosed into the adult; the rest of the body and the arms atrophy.
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All embryonic stages and the first larval stage are pre-nervous, with the first neurons arising at the prism 2 stage and the plutei possessing the larval nervous system.
The sea urchin embryo as a model for mammalian developmental ... by Slotkin, Theodore A. / Environmental Health Perspectives
 
 
 
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