710 MR. F. CHAPMAN ON THE BARGATE BEDS OF STOREY. [Nov. 1 894, 



71. Marginulina striatocostata, Beuss. 



M. striatocostata, Eeuss, Sitzungsb. Akad. Wissensch. Wien, 

 vol. xlvi. (1862) p. 62, pi. vi. fig. 2. 



Two specimens of a Marginulina, with well-rounded aboral ends, 

 occurred in the Pebble-beds, Littleton, and must be referred to the 

 above species. M. striatocostata has been found in the Upper Hils 

 formation near Brunswick. 



72. Marginulina Munieri, Berthelin. 



M. Munieri, Berthelin, Mem. Soc. geol. France, ser. 3, vol. i. 

 (1880) no. 5, p. 33, pi. i. figs. 19 a, b. 



This species has been described from the French Gault, and it is 

 also found at Folkestone. 



Two specimens from the Pebble-beds, Littleton. 



Vaginulina, d'Orbigny. 



73. Vaginulina legumen (Linne). 



Nautilus legumen, Linne, ' Syst. Nat.' 10th ed. (1758) p. 711, 

 no. 248 ; 12th ed. (1767) p. 1164, no. 288. 



Vaginulina legumen, Brady, ' Challenger ' Bep. vol. ix. (1884) 

 p. 530, pi. lxvi. figs. 13-15. 



This species makes its first appearance in beds of Liassic age, and 

 is also generally distributed through nearly all later fossiliferous 

 deposits. 



Two specimens from the Pebble-beds, Littleton. 



74. Yaginulina arguta, Reuss. 



V. arguta, Beuss, Sitzungsb. Akad. Wissensch. Wien, vol. xl. 

 (1860) p. 202, pi. viii. fig. 4 ; vol. xlvi. (1862) p. 47, pi. iii. fig. 13. 



This species is known from the Gault and Neocomian beds of 

 North Germany, and from the Gault of England and France. 



One specimen from the Pebble-beds, Littleton. 



75. Vaginulina sparsicostata, Beuss. 



V. sparsicostata, Reuss, Sitzungsb. Akad. Wissensch. Wien, 

 vol. xlvi. (1862) p. 50, pi. iv. fig. 4. 



This species was found by Beuss in the Upper Hils-Thon of North 

 Germany. 



The Bargate specimens are both damaged, and the more perfect 

 one agrees with Beuss's figure, with the exception that the latter 

 has the primordial chamber quite minute, whilst in the former it is 

 large and inflated. This difference may, however, be referred to a 

 ' dimorphic ' relation between the two examples of the same species, 

 Reuss's specimen belonging to form B, whilst the Bargate specimen 

 exemplifies form A of MM. Munier-Chalmas and Schlumberger. 1 



Two fragmentary specimens from the Pebble-beds, Littleton. 



1 Comptes-rendus Acad. Sci. Paris, vol. xcvi. (1883) pp. 862, 1598 ; Ann. & 

 Mag. Nat. Hist. ser. 5, vol. xi. (1883) p. 336, & vol. xii. (1883) p. 67. 



