Number of photoreceptors contained in ocellar retina

Range ~10,000 photoreceptors
Organism Cockroach Periplaneta
Reference Mizunami M. Functional diversity of neural organization in insect ocellar systems. Vision Res. 1995 Feb35(4):443-52 DOI: 10.1016/0042-6989(94)00192-o p.444 right column 3rd paragraphPubMed ID7900285
Primary Source Weber G, Renner M. The ocellus of the cockroach, Periplaneta americana (Blattariae): receptory area. Cell Tissue Res. 1976 May 6 168(2):209-22 DOI: 10.1007/bf00215878PubMed ID1268935
Method Primary source abstract: "The ocelli of Periplaneta americana were studied by light and electron microscopy."
Comments P.444 right column 3rd paragraph: "The number of photoreceptors contained in the ocellar retina is about 10,000 (primary source), the largest number among insects, and the volume of the rhabdom is very large."
Entered by Uri M
ID 117186