209 

 Plate VIII. 



Gresslya gregaria, iZieten.) Goldfuss. sp. 



Fig. 1. a) A cast seen fi-ora the left side, b) the same from the front, 

 partly covered with shell-substance, c) interior of left valve of the same 

 specimen. Brown sandstone of Mount Nathorst. 



Fig. 2. Fragment of a cast, showing the sculpture. Brown sandstone 

 of Mount Nathorst. 



Gresslya abducta, Phillips, sf. 

 Fig. 3. A cast seen from the right side. Brown sandstone of Mount 

 Nathorst. 



Gresslya i^eregrina, Phillips, sp. 

 Fig. 4. A cast: a) from the left side, b) from the front, c) from above. 

 Brown sandstone of Mount Nathorst. 



Macrocephalites Fompeckji nov. sp. 



Fig. 5. A cast in clay-ironstone with parts of the inner whorl visible. 

 From Ammonite Mountain on the west side of the innermost part of Hurry's 

 Inlet. 



Fig. 6. Cast in clay-ironstone: a) seen from the side, b) view of external 

 margin, c) portion of external margin showing traces of the suture-lines, 

 which have weathered out. From Ammonite Mountain on the west side of 

 the innermost part of Hurry's Inlet. 



Macro ceplialites Islimæ, Keyserling, sp. 



Fig. 7. A cast partially covered with shell-substance. 



Fig. 8. Fragments of a cast, showing some of the whorls in transverse 

 section. 



Fig. 9. Portion of a Avhorl with a suture-line coloured to show its form. 



These casts were found in concretions in a very micaceous clay-shale 

 ill Vardekløft. 



Plate IX. 



Cadoceras crassum nov. sp. 

 Fig. 1 . A large fragment of a cast. 



Fig. 2. The same specimen, with part of the outer whorl removed to 

 show portions of the inner whorls. 



Fig. 3. The middle part of the same specimen after some of the inner 

 whorl has also been removed, so that a portion of the innermost whorl is 

 exposed. 



Concretion in a very micaceous clay-shale in Vardeklöft. 

 XXIX. 14 



