Figure 21 in Neurobiology and vision of jumping spiders (Araneae: Salticidae)

Figure 21. Schematic cross sections of the AME retina (layer I). All are packed in a space-filling hexagonal array, although the paired rhabdoms of Goleba puella (Simon 1885) are rectangular (1). One receptor cell is highlighted in green in each image. The diameter of each receptor varies, with the smallest receptors, more closely packed, near the center of the retina. Each receptor is surrounded by the projections of unpigmented glial cells. 1, Goleba puella, after Blest, O'Carroll & Carter 1990. 2, Portia fimbriata (Doleschall 1859), Spartaeus spinimanus (Thorell 1878), or immature Servaea vestita, after Blest & Price 1984); Blest & Sigmund 1984); Blest 1985b; Blest & Carter 1987, 1988. 3, Lyssomanes viridis (Walckenaer 1837), Cyrba algerina (Lucas 1846), Spartaeus spinimanus, or Yaginumanis sexdentatus (Yaginuma 1967) after Blest & Sigmund 1984, 1985; Blest, O'Carroll & Carter 1990. 4, Colonus sylvanus or immature Servaea vestita, after Blest & Carter 1987, 1988; Blest, O'Carroll & Carter 1990. 5, Phidippus, Cyrba algerina,?Jacksonoides kochi (Simon 1900) or Lyssomanes dissimilis Banks 1929, after Eakin & Brandenburger 1971; Blest & Price 1984; Blest & Sigmund 1984; Blest, McIntyre & Carter 1988; Blest, O'Carroll & Carter 1990. 6, Phidippus johnsoni, lateral, after Eakin & Brandenburger 1971. Note reduced packing and paired rhabdoms of these larger, lateral receptors. In some species the presence of one or two rhabdom groups in each cell depends on the plane of section.