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 ?
Both species have a profuse covering of brown spots with a large black or dark brown ocellate marking on the middle of the side, just behind the head.
3) reveals less pronounced bars and a more ornate pattern consisting of a number of large spots between the pectoral and pelvic fins and smaller ocellate spots on the head and body of H.
Ocellate octopuses (Cephalopoda: Octopodidae) of the Great Barrier Reef, Australia: description of two new species and redescription of Octopus polyzenia Gray, 1849.