444 Transactions of the Society. 



165. Biscorhina vesicularis Lamarck sp. 



Discorbites vesicularis Lamarck, 1804, Ann. du Museum, vol. v. p. 183; 



vol. viii. pi. lxii. fig. 7. 

 Motalia turbo var. vesicularis (Lamarck) Parker and Jones, 1860, Ann. and 



Mag. Nat, Hist., ser. 3, vol. v. p. 293, No. 6. 

 Discorbina vesicularis (Lamarck) Brady, 1884, Foram. ' Challenger,' p. 651, 



pi. Ixxxvii. fig. 2. 

 Ditto. (Lamarck) Earland, 1905, Journ. Quekett Micr. Cub., ser. 2, vol. ix., 



No. 57, p. 224, pi. xii. figs. 9, 10, and pi. xiv. fig. 6. 



Fossil, frequent. All the specimens are of a large and well 

 developed type such as are found in the recent state in Australian 

 shore-sands. None of the thin-walled delicate specimens recorded 

 by Halkyard from Jersey, and Earland from Bognor, have been 

 found at present in the Selsey shore-sands. 



166. Discorbina dimidiata Jones and Parker. 



Discorbina dimidiata Jones and Parker, 1862, Carpenter, Parker, and Jones, 



Introduc. Foram., p. 201, fig. 32 b. 

 Ditto. (J. and P.) Parker and Jones, 1865, Phil. Trans., vol. civ., pp. 385, 



422, pi. xix. figs. 9 a-c. 

 Ditto. (Jones and Parker) Chapman, 1907, Journ. Quekett Micr. Club, 



ser. 2, vol. x. No. 61, p. 136, pi. x. fig. 8. 



Fossil only ; frequent. This species, which differs from the 

 type I). vesicularis (Lamarck), in the possession of a relatively 

 flat inferior face, is abundant in the Australian shore-sands, in 

 common with D. vesicularis, and its fossil records are probably 

 identical. Lamarck's specimens of D. vesicularis were from the 

 Eocene of the Paris basin. Our specimens are probably referable 

 to the same period. 



167. Discorbina hiconcava Parker and Jones. 



Discorbina hiconcava Parker and Jones, 1865, Phil. Trans., vol. civ. p. 422, 



pi. xix. fig. 10 a, b, c. 

 Ditto. (Parker and Jones) Siddall, 1878, Proc. Chester Soc. Nat. Sci., pt. 2 



p. 50. 

 • Ditto. (Parker and Jones) Brady, 1884, Foram. ' Challenger,' p. 653, 



pi. xci. fig. 2 (not fig. 3). 

 Ditto. (Parker and Jones) Brady, 1887, Synopsis British Becent Forami- 



nifera. 



One specimen, fossil ; in which condition the species does not 

 appear to have been previously recorded. 



168- Discorbina saulcii d'Orbigny sp. 



Bosalina satdcii d'Orbigny, 1839, Foram. Amer. Merid., p. 42, pi. ii. figs. 9-11. 

 Ditto. Parker and Jones, 1872, Quart. Journ. Geo!. Sci., vol. xxviii. p. 156. 



Fossil only. Its distribution in the -ecent state is confined to 

 the shallow waters of sub-tropical seas. . 



