ocellus

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ocellus

(pl. ocelli): see eyeeye,
organ of vision and light perception. In humans the eye is of the camera type, with an iris diaphragm and variable focusing, or accommodation. Other types of eye are the simple eye, found in many invertebrates, and the compound eye, found in insects and many other
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ocellus

[ō′sel·əs]
(invertebrate zoology)
A small, simple invertebrate eye composed of photoreceptor cells and pigment cells.
(petrology)
A phenocryst in an ocellar rock.
References in periodicals archive ?
Here we attempt to categorize the known diversity of radiolar ocelli in the Serpulidae as reported in previous anatomical and taxonomic investigations.
Head: Scape bare except for marginal ring of short setae; pedicel short-setose, with some longer ventral apical setae; frontal vitta with strongly convex circular area surrounding ocelli, extending 1/2 distance from anterior ocellus to anterior margin of frons; 2 pairs of fronto-orbital setae, 1 large above level of ocelli, 1 smaller below; postocellar, outer and inner vertical setae well-developed.
Facia, genae and mandibles black, labrum reddish brown; eyes brown, ocelli pale yellow; base of antenna black, the other part lighter, with some annulate brown stripes.
Carapace: three pairs of lateral ocelli; ocular tubercle prominent, median ocelli separated by one diameter; anterior margin with weak median notch, anterior median and anterior marginal furrows only weakly developed; median ocular furrow present, lateral ocular furrows weak, median and posteromedian furrows strong, with a depressed area in between, posterior transverse furrows absent, posterolateral furrows well developed.
Titanite ocelli (referred to as sphene-centered ocelli by Hibbard 1995) consist of titanite in ophitic intergrowth with plagioclase, surrounded by a felsic zone consisting of K-feldspar + quartz + plagioclasc.
Fuimos a Los Pinos a hablar con Cecilia Ocelli, porque ella queria hacer un museo para los ninos.
These simple eyes, known as ocelli, are arranged around the top of the head so that a spider can see in all directions at once.
When researchers painted over the ocelli on some bees, those insects couldn't detect an artificial light placed near their special glass-sided hive.
La hija del ex presidente de Mexico Carlos Salinas de Gortari, Cecilia Salinas Ocelli, quien llego a la capital mexicana procedente de la ciudad estadounidense de Dallas, fue recibida par su novio, el presentador de radio y television, Jorge Van Rankin, en medio de un discreto dispositivo de seguridad del Estado Mayor Presidencial.
A eso se debe su nombre cientifico ocellata, ya que en latin ocelli significa ojos.
A single row of variable sized ocelli border the anterior margin and the first 2-3 mm of the lateral margin; these ocelli are not visible from the dorsal surface.