THE FAMILY LAGENIDyE 189 



striated and sulcate, and the present example falls 

 into this group, in which the central type is N. 

 raphaniis of Linne. N. Zippei is a characteristic 

 cretaceous fossil, occurring in the Gault and Chalk of 

 England and Bohemia. It is well separated from the 

 type form N. raplianus hy the strongly inflated 

 chambers and the small number of the salient 

 vertical costae. Cretaceous. (Plate 10, fig. I.) 



Two other examples are now given of what are 

 often regarded as sub-generic modifications of 

 Nodosaria — namely, Glanduliiia, in which the test is 

 short and almost lageniform in outline, the earlier 

 chambers being vertically compressed into a shorter 

 space than is usual in Nodosaria, and with the later 

 chamber or chambers much more spacious and 

 inflated ; and DentaUfia, which is a curved nodo- 

 sarine form, often gracefully tapering towards the 

 aboral extremity. 



N. {Glandulina) IcEvigata, D'Orbigny, ' Ann. 

 Sci. Nat.' vol. vii. 1826, p. 252, pi. x. figs. 1-3. 



This species has a fairly wide range in the fossili- 

 ferous formation, since it first appears in the Lias of 

 Chellaston ; and it has been recorded under various 

 synonyms, from successive strata of later date. As 

 N. (Gr.) abbreviata it was described from the London 

 Clay of Piccadilly, and from the Miocene of Tran- 

 sylvania. This species is well distributed in modern 

 seas. Lias to Becent. (Plate 10, fig. G.) 



A^. (Dentatuia) Adoljdiiita, D'Orbigny, ' Foram. 

 Foss. Vienne,' 1846, p. 51, pi. ii. figs. 18-20. 



This pretty little species is found in some abund- 



