188 Messrs. Parker and Jones on 



18. Textilaria pinnula, EJir. 

 19. striata, Ehr. 



20. globulosa, Ehr. 



21. Verneuilina pygmsea [Egger). 



22. Globigerina cretacea, Z>' Orh. 



23. Planorbulina ammonoides, Rss. 



24. globulosa {Ehr.). 



25. Planulina ariminensis, D' Ori. 



26. Pulvinulina elegans (Z>' Ori.) ? 



27. Orbignyi (Boeni.)? 



28. spatiosa (Ehr.). 



29. Synspira triquetra, ^^r. 



XV. Foraminifera from the Chalh of the Island of Rugen, 

 Baltic. (Monatsber. 1838, p. 192 ; Abhandlmig. 1838, table 

 II. pi. 4. fig. iii.) 



PI. XXX. fig. 1, Miliola {Monocystis) arcella (" OrlmUna 

 universa, D'Orb. ?"),is Orb. universa. Fig. 2, Nodosaria 

 monile, a few joints of a short-chambered N. ovicida (or elon- 

 gated N. radicula) ; probably the straight fomi of DentaUna 

 nnonile^ Hagenow, from the same Chalk. Figs. 3, a, 5, Tex- 

 tilaria globulosa (1838), =i, T. gihbosa and, a, its young form 

 or early chambers. Figs. 4, a, 5, c, Text, sidcata (" T. striata, 

 1838"), and figs. 5, a, h, T.i^acliyaulax (" compare T. h-evis'''') , 

 are strongly marked specimens of T. striata^ which, though 

 difiering from T. gibhosa only in its ornament, is a convenient 

 variety. Fig. 4 c shows that the septal apertures, otherwise 

 normal, are slightly lipped. Figs. 6, a, 5, c, d. Text, linearis, 

 is a typical Bolivina punctata^ Fig. 7, Text, acuta, is also 

 Bolivina punctata, but somewhat irregular in shape ; it well 

 matches in outline Virgulina Reussii, Geinitz, as figured by 

 Reuss, ' Bohm. Kreid.' i. pi. 8. fig. 61 : figs. 9 & 10 of pi. xxvii. 

 (Meudon Chalk) are very similar, but with thicker shell-walls. 

 Fig. 8, Text, subtilis, is another B. •punctata, small and regular, 

 of a common elongate-ovate shape. Fig. 9, Grammostomuni 

 gracile, is a rather coarse Virgulina Schreibersii. Figs. 10, 

 a, h. Gram. platytheca, is Textilaria sagittula. Fig. 11, Gram, 

 millepora, is a well-grown Bolivina dilatata (see also fig. 15). 

 Fig. 12, Text.infata ('' T. aspera, 1838, partly"), is a coarse- 

 shelled T. gibbosa, with sHght marginal prickles, like T. suh- 

 angulata from Moen, p. 185 ; and fig. 13, Gram, aculeatuni 

 (" Text, spinosa, 1838, partly"), is a smaller individual with 

 more abundant and coarser prickles on the outer edges of the 

 chambers. These two are rough relatives of the beautifully 

 neat and simply aculeate Text. Maria', D'Orb. Fig. 14, Gram. 

 pinnv,la, seems to be the tapering subarcuate apex of a Bolivina 



