एक टेमेटोड कीड़े के टैडपोल के आकार का परजीवी लार्वा; पूंछ वयस्क अवस्था में गायब हो जाती है

cercariae's Usage Examples:

c, Nearly ripe cercariae; cc, cystogenous cells; dr, daughter-redia; dt, limbs of the digestive tract; f, head-papilla; h, eye-spots; h', same degenerating; k', germinal cell; 1, cells of the anterior row; m, embryo in optical section, gastrula stage; n, pharynx of redia; o, digestive sac; oe, oesophagus.

For example the schistosome cercariae are generally shed during daylight, in the morning, whilst those of other species emerge only at night.

In this situation it becomes much swollen and banded with colours, and produces a large number of ecaudate cercariae.

The number of cercariae produced by the pullulating rediae in a single water-snail is immense, and as they are emitted at a given period or a few successive periods, the snail at these times appears enclosed in a cloud of whitish flocculent matter.

D, An adult redia, containing a daughter-redia, two almost mature cercariae, and germs. E, A free cercaria.

All the species are usually infested with Cercariae and Rediae, the larval forms of Trematode parasites of vertebrates.

cercariae's Meaning':

tadpole-shaped parasitic larva of a trematode worm; tail disappears in adult stage