Müller's Larva

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Müller's larva

[′mil·ərz ‚lär·və]
(invertebrate zoology)
The ciliated larva characteristic of various members of the Polycladida; resembles a modified ctenophore.

Müller’s Larva

 

the free-swimming marine larva of some polycladid Turbellaria; it was discovered by J. Müller in 1850. The body is egg-shaped, with eight to ten lobes that bear a ciliated band; sometimes the upper and lower poles of the body have a bundle of sensory flagella. On the ventral side of the body is the mouth opening, which leads to the pharynx. As the Müller’s larva develops, the rear of the body elongates, the entire body flattens, the lobes diminish, and, descending to the bottom, the larva becomes a worm.

References in periodicals archive ?
The detailed remodeling mechanisms that lead to the establishment of the complex muscular architecture of the Muller's larva are still unknown, as are the events involved in shaping the juvenile/adult musculature during metamorphosis.
Although a relatively complex pattern of morphogenesis takes place during the development of the Muller's larva, driven in part by the dorsolateral expansion of the dorsolateral ectodermal domains and the formation of the oral hood and various larval lobes, we have clearly identified A, B, C, and D quadrants similar in relationship to those of annelids and molluscs.