Definition of Perradii
1. perradius [n] - See also: perradius
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Lexicographical Neighbors of Perradii
Literary usage of Perradii
Below you will find example usage of this term as found in modern and/or classical literature:
1. Text-book of Comparative Anatomy by Arnold Lang, Ernst Heinrich Philipp August Haeckel (1891)
"They lie in the lateral perradii. In many Cteno- phora the body is round in transverse section; in others it is compressed either in the lateral or the ..."
2. A Laboratory Course in Invertebrate Zoöloy by Hermon Carey Bumpus (1893)
"This opening is elevated upon a short manu- brium, and has four radiating angles which determine four main radii of the animal, the so-called perradii. ..."
3. The Encyclopaedia Britannica: A Dictionary of Arts, Sciences, Literature and (1910)
"The marginal tentacles are rarely absent in non-parasitic forms, and arc typically four in number, corresponding to the four perradii marked by the radial ..."
4. An Introduction to the Study of the Comparative Anatomy of Animals by Gilbert Charles Bourne (1900)
"The interradial axes are defined by four imaginary straight lines bisecting the angles formed by the perradii. At the end of every such imaginary line is ..."
5. Zoology of the Invertebrata: A Text-book for Students by Arthur Everett Shipley (1893)
"... situated halfway between the perradii, and are known as interradial tentacles; and eight more may be added, one between each ..."