201 



Explanation of the plates. 



Plate VI. 



Pentacrinus sp. cf. Andreœ, de Lokiol. 



Fig. t. Fragment of a stem with cirrhi. 



Figs. 2 and 3. Fragments of arms, with a few pinnules attached. 



Fig. 4, a, b. Fragment of a stem: a) as seen from the side, b) as seen 

 in cross-section. 



Fig. 5. Fragment of a stem to show the sutures (enlarged ^/i). 



Fig. 6. Stem-fragment with little round depressions in the middle of 

 the suture-line of each side, as in Pentacrinus crista-galU, Quenstedt 

 (enlarged ^/i). 



All these specimens were obtained from the coarse-grained brown crinoid- 

 sandstone of Mount Nathorst. 



Aucella Pallasii, Keyserling. 

 Fig. 7. Cast of left valve: a) as seen from the side, b) from above, 

 c) from below. Light-coloured sandstone from Aucella River in the south- 

 west of Jameson's Land. 



Myoconcha grönlanclica sp. nov. 

 Figs. 8 and 9. Casts of two specimens: a) as seen from the side, 

 b) from above, c) from the front. Coarse brown sandstone of Mount Nathorst. 



Pecten sp. 

 Fig. 10. A cast in light-coloured sandstone from Aucella River in the 

 south-west of Jameson's Land. 



Trigonia undulata, Fromherz. 

 Fig. 11. Left valve. Brown sandstone of Mount Nathorst. 



Astarte Hartzi, Lundgren. 

 Fig. 12. A cast: a) as seen from left side, with part of shell attached, 

 b) from right side, c) from above. Block of dark-coloured calcareous sand- 

 stone from Vardekloft. 



