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Convolutidae

Convolutidae is a family of acoels, belonging to the phylum Xenacoelomorpha. This family contains more than a third of all known acoel species.

Description

The family Convolutidae includes acoels with a ventral mouth opening and a body-wall musculature composed both dorsally and ventrally of circular, longitudinal, and longitudinal crossover muscle fibers. The ventral body wall also has a group of U-shaped fibers. Most species are symbionts with algae. The anterior end has a cluster of frontal glands, a pair of eyes and a statocyst. The body has pigmented lens. Intestine and excretory system is absent. It is hermaphrodite but protandry is common.

Taxonomy

Genera

There are 26 genera in the family Convolutidae, of which 25 are extant. The type genus is Convoluta.

Species

There are over 100 species recognised in the family Convolutidae:

Notes

References