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Geidl's father was an officer in the Austro-Hungarian Army based in Kotor. His mother was a poor Montenegrin noblewoman. Later, the family moved to Kyjov, Moravia, where Geidl studied at a secondary grammar school.
Radla (or Radula, died after 1000) was a Czech priest and tutor of Saint Adalbert of Prague (Czech: Svatý Vojtěch). Only little is known about life of Radla and the available information is often contradictory. He could be the bastard son of Slavník, the founder of Slavník's dynasty and father of Adalbert.
The radula (US: / ˈ r æ dʒ ʊ l ə /; pl.: radulae or radulas) [1] is an anatomical structure used by mollusks for feeding, sometimes compared to a tongue. [2] It is a minutely toothed, chitinous ribbon, which is typically used for scraping or cutting food before the food enters the esophagus .
While some species of Radula can produce similar structures, the consistent presence and positioning of these shoots in Dactyloradula helps distinguish it from related genera. [ 3 ] These features, when considered together, provide a reliable way to identify Dactyloradula and support its recognition as a distinct genus.
Radula amentulosa Mitt. Radula amoena Herzog Radula anceps Sande Lac. Radula aneurysmalis (Hook.f. & Taylor) Gottsche, Lindenb. & Nees Radula angulata Steph. Radula anisotoma M.A.M.Renner Radula appressa Mitt. Radula aquilegia (Hook.f. & Taylor) Gottsche, Lindenb. & Nees Radula assamica Steph. Radula australiana K.Yamada Radula australis Austin
The jaw is arched; the ends squarely truncated; the anterior surface striate; the cutting edge with a median projection. The radula has a central tooth that is almost square, tricuspid, as large as or larger than the lateral teeth, which are similar, narrower, and bi- or tricuspid. The marginal teeth are low, wide and serrated.
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Radula visianica is a small, green to yellowish-green plant that grows in patches. Individual shoots are typically 0.3–1.5 mm (0.012–0.059 in) wide and can reach up to 20 mm (0.79 in) in length.