trochophore

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trochophore

(trŏk′ə-fôr′)
n.
The small, free-swimming, ciliated aquatic larva of various invertebrates, including certain mollusks and annelids.

trochophore

or

trachosphere

the characteristic larva of polychaet worms, molluscs and some other invertebrates. It is more or less spherical, with a pre-oral ring of cilia called the prototroch.
References in periodicals archive ?
The area of 100 eggs or larvae from brooding females (wild: pretrochophores from 5 females, trochophores from 3 females, veligers from 5 females; hatchery: pretrochophores from 3 females, trochophores from 3 females, veligers from 2 females) were measured using a compound microscope (BX41TF, Olympus, Tokyo, Japan) at a magnification of x 10 with an image capture camera (Evolution VFfast, Media cybernetics, Silver Spring, Canada) and Image processing software (Image-Pro plus V5.
05%) treatment of a pool of trochophores in sea water for 2 h, mechanical disruption of cells, including centrifugation at 1000 rpm/10 min, hypotonic treatment in distilled seawater (1:1) for 30 min and then in 0.
rotifers, trochophore larvae, agar-based foods, algae, bivalve hepatopancreas, and "grow-lights" for those species of medusae with zooxanthellae.
Effect of Temperature on the Hatches of Trochophores
Most of the spiralians began to swim as trochophores (with ciliated trochoblasts).
Hatching and normality rates in trochophores were determined at 10 h p.
The notion that neurites extending from the apical ganglion may help organize later formed components of the nervous system has been sugges ted previously by Lacalli (1981, 1984), on the basis of studies of several species of polychaete trochophores.
Although expressed during many stages and not specific to biomineralization, engrailedis involved in regulating larval shell formation of chiton trochophores (Lepidochitona caverna (Jacobs et al.
The transition stage from trochophores to D-stage veligers was first seen at 22 h postfertilization and were present for only 2 h.