Vol. 50.] ME. P. CHAPMAN ON THE BARGATE BEDS OF SURREY. 707 



56. Nodosaria (Dentalina) xiphioides, Reuss. 



IV. (V.) xiphioides, Reuss, Sitzungsb. Akad. Wissensch. "Wien, 

 vol. xlvi. (1862) p. 43, pi. iii. fig. 1. 



This species has been hitherto apparently restricted to the Gaulfc 

 formation, since it was found in the Minimus-Thon of North 

 Germany, in the Gault of Montcley, and at Folkestone. 



One specimen with three chambers, from the Pebble-beds, 

 Littleton. 



57. Nodosaria (Dentalina) limbata, d'Orbigny. 



N. limbata, d'Orbigny, Mem. Soc. geol. France, vol. iv. (1840) 

 p. 12, pi. i. fig. 1. 



IV. limbata is a characteristic Chalk fossil, and has also been found 

 in the Red Chalk of Hunstanton. 1 



The three fragmentary examples found in the Pebble-beds at 

 Littleton are not quite so deeply constricted between the chambers 

 as in the figures given by d'Orbigny, but they exhibit the test- 

 thickening between the segments. 



58. Nodosaria (Dentalina) Fontannesi, Berthelin. 



Dentalina Fontannesi, Berthelin, Mem. Soc. geol. France, ser. 3, 

 vol. i. (1880) no. 5, p. 42, pi. ii. fig. 14. 



This form has been described from the French and English Gault. 

 Two specimens from the Pebble-beds, Littleton. 



59. Nodosaria (Dentalina) obsctjra, Reuss. 



IV. obscura, Reuss, ' Verstein. bohm. Kreid.' pt. i. (1845) p. 26, 

 pi. xiii. figs. 7-9. 



A familiar Cretaceous species, two specimens of which, differing 

 greatly in size (and the larger one fragmentary), were found in the 

 Bargate Pebble-beds at Littleton. 



60. Nodosaria tenuicosta, Reuss. 



IV. tenuicosta, Reuss, ' Verstein. bohm. Kreid.' pt. i. (1845) p. 25, 

 pi. xiii. figs. 5, 6. 



A Cretaceous form between N. raphanus (Linn.) and N. rajphani- 

 strum (Linn.), with thin platy costse. It has been found in beds 

 equivalent in age to the Lower Greensand in Germany, also in the 

 French and English Gault, and in the Planer-Merge! of Bohemia. 



Two specimens from Pebble-beds, Littleton. 



61. NODOSARIA PRISMATICA, ReUSS. 



JV. prismatiea, Reuss, Sitzungsb. Akad. Wissensch. Wien, vol. xl. 

 (1860) p. 180, pi. ii. fig. 2. 



IV. prismatiea is already known from beds of Lower Greensand 



1 Burrows, Sherborn, & Bailey, Journ. Boy. Micr. oc. 1890, p. 557, pi. ix. 

 fig. 23. 



Q. J. G. S. No. 200. 3 c 



