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.
Fig. 12. A portion of the cephalic eye 20/1.
» 13. The hypostoma 4/1.
» 14. The right macula 12/1. Specimen from Beeren Eiland, Oswalds
förberg, communicated by Hr. J. G. Andersson.
Phillipsia sp.? p. 66.
Fig. 16. The hypostoma 3/1.
» 16. The right macula 12/1.
» 17. Horizontal section of the cephalic eye 60/1.
» 18. Vertical section of the cephalic eye, a cheek 60/1.
Probably from the Carbon of Belgium.
Proetus concinnus Dalm. p. 67.
Fig. 19. Horizontal section of the cephalic eye, a little oblique, at
right the innermost stratum with the rock 60/1.
» 20. Vertical section of the cephalic eye. The diameter of the
prisms 0,03 millim.
» 21. Hypostoma 4/1.
» 22. The right macula 12/1.
» 23. The same with a light, transparent spot 12/1. Specimen
from Djupvik, Eksta.
Proetus conspersus Ang. p. 68.
Fig. 24. A portion of the cephalic eye 20/1.
» 25. The hypostoma. Cast of the interior side 4/1.
» 26. Cast of the interior side of the left macula 12/1.
Fig. 24 from Öja, Gotland, the others from Kräklingbo.
Proetus signatus Ldm. p. 68.
Fig. 27. Hypostoma 4/1.
» 28-30. Three pair of maculæ with dark ocelli in a white spot.
Ptychopyge angustifrons Dalm. p. 69.
Fig. 31. Horizontal section of the cephalic eye 250/1.
» 32. Hypostoma, a broad variety 1/1.
» 33. Another, a narrow variety 1/1.
» 34. The left macula of the hypostoma fig. 32 4/1.
» 35. A similar of the narrow variety 4/1.
» 36. Vertical section of a macula. a the macula 20/1.
Specimens from Vestanå and Kungs Norrby, Östergötland.
Ptychopyge cincta Brögger p. 69
(according to Fr. Schmidt. The figure 12 a of Brögger resembles, however, the hypostoma of Pt. angustifrons, but not the hypostomata which have been prepared from the Ptych. cincta).
Fig. 37. A hypostoma; the maculæ are directed obliquely 2/1.
» 38. The right macula of another specimen 4/1.
» 39. Vertical section of a macula 60/1. Specimens from Kungs
Norrby, Östergötland.
Ptychopyge aciculata Ang. p. 68.
(Compare Brögger II Taf. I, fig. 13.)
Fig. 40. The hypostoma, cast of the interior surface 1/1.
» 41. Cast of the right macula 4/1. Specimen from Öland, Brunsby.
Ptychopyge glabrata Ang. p. 69.
Fig. 42. Original of Brögger's fig. 14. Cast of the inside of
the right macula 4/1. Ǎlleberg.
Elyx laticeps Ang. p. 19.
Fig. 43. The interior surface of the right fixed cheek and the
glabella. Magnified. Specimen from Andrarum. 4/1.
Conocoryphe p. 19.
Fig. 44. Cast of the interior surface of the left cheek. Magnified.
From Andrarum. 4/1.
Solenopleura brachymetopa Angel. p. 19.
Fig. 45. The head shield, cast of the interior surface. Magnified.
Specimen from Andrarum, Scania. 4/1.
Apus cancriformis Schäffer p. 73.
Fig. 46. The hypostoma from the outside 8/1.
» 47. The same from the inside 8/1.
» 48. A side view of the same, 8/1. a the duplicature of the
head shield, b posterior integument of the hypostoma,
c the ventricle, d the mouth.
» 49. The right white spot at the posterior margin of the hypostoma,
seen from the outside in transmitted light 150/1.
| K. Sv. Vet. Akad. Handl., Bd 34, No 8. | Lindström: Trilobites. Pl. VI. |
Click on image to view larger sized. | |
| G. Liljevall del. | Ljustryck af Chr. Westphal Stockholm. |
Transcriber Note
Minor Typos were corrected. Inconsistencies in capitalization and abbreviations were left as printed.