On Jurassic and Cretaceous fossils from Nortli-East Greenland. 4(Sli 



mined to their species. In form most of them sliow a considerahle 

 resemblance to Л^ plicata Mü. (Goldfuss : Petrefacta Germaniae. 

 III. p. 119; PI. 109, fig. 15) from Lindner Berg in Hanover, but the 

 transverse folds of the last whorl seem to be wanting. — One of 

 the two specimens from "Kløft I" is considerably smaller than the 

 others and })robably belongs to a ditferent, more slender species. 



Ô9. Turritella sp. 

 PI. XXXV, fig. 7. 



From "Kløft И" on Store Koldewey Island there is a fragment 

 of a Turritella, consisting of ca. 5, extremely well-preserved whorls. 

 It probably belongs to a hitherto underscribed species. 



Very elongate-turreted with numerous, flat whorls, separated by 

 little obvious sutures. Uppermost on the younger whorls present a 

 л'бгу narrow and quite faint excavated band, on which there is a 

 pair of quite fine, raised spirals. The rest of the shell covered with 

 numerous, rounded spirals of variable breadth and with somewhat 

 variable interspaces; the last usually less than, sometimes equal to 

 the breadth of the spirals. Lines of growth fine, in an even curve. 



On the second-last whorl present, with a diameter of 8 mm, the 

 number of spirals is 9. 



The w^hole appearance greatly resembles that of a Nerinea, but 

 there is no trace of the internal folds characteristic of this genus. 



A second, less well-preserved specimen from "Kløft Г' on Store 

 Koldewey Island probably belongs to this species. 



In the boulder containing jAncella nwsqiiensis from Harefjæld at 

 Danmarks Havn a stump was foiuul of a (juite indeterminable 

 Turritella species. 



()0. Chemnitzia undulata Tullbp:rg sp. 



1881. Eulima nndiilata Tullberc;, Aucella-Schichten Novaja Semljas. p. 10: PI. 2, 



figs. 26—27. 



Short turreted with slightly arched whorls. These separated by 

 deep sutures and — in the case of the older ones — covered with 

 fairly coarse, curving, rounded transverse ribs; the younger whorls 

 on the other hand smoother, without regular transverse ribs, but 

 with coarse and fine, curving lines of growih. Further^ numerous 

 very fine spirals. The aperture probably oviform, with a pointed 

 angle above. 



Length ca. 8 mm, thickness ca. 4 mm. 



Although numerous specimens of the species are present, 1 have 

 not seen a single complete shell. According to Tullbehg's descrip- 

 tion there should be transverse ribs on all the whorls; his figures 



