190 Messrs. Parker awe? Jones on 



meranay = Pulvinulina Micheliniana^ seen from the flat top. 

 Fig. 31, PL umbilicata^ looks somewhat like an umbonate Cris- 

 tellaria cultrata^ or rather Gr. rotulata with jDinched edge; but it 

 is doubtful. Fig. 32, Nonionina ? spira, is also Cristellarian in 

 most points, like the foregoing ; but the speckled appearance is 

 peculiar. Fig. 33, Planulina amfpliata^ =PlanorhuUna am- 

 monoides. Fig. 34, Cristellaria porosa^ is a fragment of some 

 neatly grown Planorhidina. Fig. 35, Cristellaria rota^ be- 

 longs to a limbated Cr. cultrata^ such as Cr. jylanicostaf Von 

 Hagenow, from Riigen. 



Fig. 36, Lenticulina discus, is Planorhulina Ilaidingeriy 

 seen with the umbilical or lower face upwards. Fig. 37, He- 

 terostomum alternans, is Virgidina Hemprichii in a fine 

 condition, showing the characteristic notch-like infolded aper- 

 tures in two chambers, and exhibiting a transition of form 

 towards Cassidulina. 



Fig. 38, Glohigerina cretm, is a full-grown Gl. cretacea, 

 having the later chambers relatively large, globose, and nearly 

 equal (compare D'Orbigny's figure 13, pi. iii. '■ Mem. sur la 

 Craie blanche,^ &c.). 



Coccospheres, Coccoliths, Pyocidicida j^risca (^) , GalUonella 

 auriclialcea (1838), and Spongoliths are also figured on this 

 plate, from the Chalk of Rtlgen. 



The foregoing lived at about 100 fathoms depth. 



In 1842 Herr von Hagenow contributed a memoir on the 

 fossils of the Chalk of Riigen (3rd part, Mollusks) to the 

 ^ Neues Jahrbuch fur Min., Geol. u. Palaiont.' 1842, pp. 528- 

 575 ; and at pages 568-574, and in pi. ix. figs, 20-26, are 

 described and illustrated the Foraminifera he met with. In 

 1861 Prof. Dr. A. E. Reuss treated of all the Foraminifera 

 known to him from the soft Chalk of Rtlgen, in ' Sitzungs- 

 berichte math.-nat.- CI. Kais. Akad. Wissensch. Wien,' vol. 

 xliv. pp. 324-333,', pi. v. figs. Q-d, pi. vi., and pi. vii. figs. 

 1 & 2. In cases w)iere the species were merely mentioned by 

 Von Hagenow in 1842, but figured and described by himself 

 subsequently, he has decided to adopt the names given with 

 the later and full account of the species. The following are 

 recognized by Reuss : — 



Lagena simplex, Rss. 



apiculata, Rss. 



Nodosaria monile, v. Hag. Dentalina, Rss. l=Nodosaria 



monile, Ehr.] 

 Hentalina sulcata, Nilsson. 

 — I— Steenstrupi, diss. 



