284 Messrs. Parker and Jones on 



cylindrical Entosolenian Lagena^ probably L. emaciata^ Reuss. 

 Figs. 3 & 4, C. oliva^ the Entosolenian Lagena globosa (Mon- 

 tagu). Fig. 5, Miliola striata^ is the Lagena costata of Wil- 

 liamson. Fig. 6, Nodosaria monile^ = N. pyrula^ D'Orb. 

 Fig. 7, N. tumescenSj =N. ovtcida, D'Orb. Fig. 8, Vaginulina 

 cretce^ = V. Icevigafa^ Roemer (three early chambers) . Fig. 9, 

 V. bullosa^ = V. leguminiformis (Batsch), three early chambers. 

 Really, however, figs. 8 & 9 are the young of one species^ 

 with slightly different proportions. Fig. 10, V. suhulata^ = 

 V. hevigata, Roemer ; four early chambers of a larger and 

 stronger shell than fig. 8. 



Figs. 11, Textilaria subtilis, 12, T. globulosa, 7. ampUor^ 

 13, 14, T. globulosa (1838), 15, T. inflata^ are small indivi- 

 duals, perhaps subvarietal, of T. gibbosa, D'Orb. Figs. 16 

 & 17, T. linearis^ =BoUvina punctata. Fig. 18, Grammo- 

 stomum poly stigma^ =■ Text, sagittula. Fig. 19, Gram, cribro- 

 sum, =Boliv. p)unctata. Figs. 20 & 21, Grain, thebatcum, = 

 Boliv. dilatata. Figs. 22 & 23, Gram, connivens, are the 

 young of the same. 



Figs. 24 & 25, Gram, lingua, are Virgulina squamosa ; 24 

 is typical, 25 is subvarietal. Fig. 26, Stropihoconus ? ( Gram- 

 mostomum?) teretmsculus, and 27, Str.? [Gi^am.?] polgtrema^ 

 are Virgulina Schreibersii, the latter quite typical. 



Figs. 28, Stroph.7 {Gram.T) leptoderma, 29, Stroph. ovum, 

 30, Stroph.'^ (Gram.?) leptoderma, 31, Strop>h. spicula, 32, 

 8trop)h.7 HempricMi, and 33, Textilaria^ {Grammobotrys'^) 

 tJiebaica, are all of one species, Virgulina Hemprichii (Ehr.), 

 of variable shape, but with persistently subarenaceous shell. 

 See ' Geol. Mag.' vol. viii. pp. 508 & 509. This species is 

 well illustrated by many figures in other plates, which we 

 shall have to notice in treating of the ^ Mikrogeologie ;' and 

 we are well acquainted with it in the recent state from the 

 Indian seas. Fig. 32 exhibits a typical complanate individual 

 of advanced growth. 



Fig. 34, Polymorphina prisca, = P. compressa, D'Orb. 

 This is the only Polymorphina on this plate, although we at 

 first accepted some other figures as such (in the " Monograph 

 onPolymorphina,'''' Trans. Linn. Soc. vol. xxvii.). Figs. 35 to 

 41 are young Globigerince. We know of but one real species 

 of Globigerina {Gl. bulloides) in both recent and fossil state, 

 though about twenty-five reputed species have been described 

 and figured, and others recorded. Of the varieties, Gl. creta- 

 cea, D'Orb., is one of the best marked, and it occurs on this 

 plate (fig. 49). Some of the young forms here mentioned 

 decidedly belong to it ; but figs. 35 & 36 in particular may be 

 true Gl. bulloides. The names given are : — figs. 35, 36, Ro- 



