Fig. 37. Horizontal section of cephalic eye near the inferior margin
30/1. The dark points lie in the outermost stratum of the
cheek.
» 38. Vertical section of cephalic eye 20/1. An irregularly
hexaedral crystal below each lens. Specimen from Wisby a.
| K. Sv. Vet. Akad. Handl., Bd 34, No 8. | Lindström: Trilobites. Pl. V. |
Click on image to view larger sized. | |
| G. Liljevall del. | Ljustryck af Chr. Westphal Stockholm. |
Pl. VI.
Phacops macrophthalmus Burm. p. 65
Fig. 1. Horizontal section of the cephalic eye 30/1.
» 2. A similar one near the inferior margin, a cheek 30/1.
» 3. Vertical section of a cephalic eye 30/1.
» 4. A similar, twice as much enlarged 60/1.
» 5. Also a similar, a cheek 30/1.
» 6. Hypostoma 2/1. Spec. EA.
» 7. The wings of the hypostoma, seen without foreshortening
4/1. EA.
» 8. The diminutive right macula 12/1, surrounded by incoherent
terrace lines.
» 9. The left macula 12/1. Specimens from Gerolstein Eifel, Devon.
Acaste sp.? p. 51.
Fig. 10. The hypostoma 8/1. From Mulde, Fröjel, Gotland.
Phaëtonides Stokesi Murch. p. 66.
Fig. 11. Hypostoma 4/1. Gotland, Eksta, Djupvik.
Phillipsia sp. p. 66.