pluteus

/ploo-tee-uhs/US // ˈplu ti əs //

钚,钚的,钚的作用

Definitions

n.名词 noun

1
plural plu·te·i [ploo-tee-ahy], /ˈplu tiˌaɪ/, plu·te·us·es.
- : the free-swimming, bilaterally symmetrical larva of an echinoid or ophiuroid.

Through these the eggs are discharged into the water, where they become free-swimming larv, called Pluteus.
The smallest fragment which is capable of reaching the pluteus stage possesses the mass of about one-eighth of the whole egg.
Pluteus, a free-swimming larval stage in the development of echinoderms, 54.
It grew abundantly there, along with Lepiota Americana and Pluteus cervinus.
The presence of lateral arms is however a distinctive characteristic of the Ophiuroid Pluteus.