50 Mr. F. Chapman on Foraminifera 



Order FORAMINIFERA. 



Family Miliolidse. 



Subfamily Miliolininm. 



Spiroloculina, d'Orbigny [I826J. 



Spiroloculina nitida, d'Orbigny. 



Spiroloculina nitida, d'Orbigny, 1826, Ann. Sci. Nat. vol. vii. p. 298. 

 no. 4 (Soldani, 1795, Testaceograpbia, vol. i. pt. 3, p. 229, pi. civ. 

 rigs. U, mm?); Cbapman, 1898, Journ. R. Micr. Soc. pp. 10, 11, 

 pi. ii. fig. 3. 



A somewhat fragmentary specimen, similar in form to that 

 from the Gault, was found at Swaffham. 



Spiroloculina tenuis (Czjzek). 



Quinqueloculina tenuis, Czjzek, 1847, Haidinger's Naturw. Abbandl. 



vol. ii. p. 149, pi. xiii. figs. 31-34. 

 Spiroloculina tenuis (Czjzek), Burrows, Sberborn, and Bailey, 1890, 



Journ. B,. Micr. Soc. p. 551, pi. viii. fig. 2. 



This species is one of the few which have not been noticed 

 in my Gault washings from Folkestone ; but it has been 

 recorded from the Red Chalk of Speeton by Burrows, Sher- 

 born, and Bailey. 



One specimen was found at Swaffham. 



MiLlOLlNA, Williamson [1858]. 

 Miliolina venusta (Karrer). 



Quinqueloculina venusta, Karrer, 1868, Sitzungsb. k. Ak. Wiss. Wien, 



vol. lvii. p. 147, pi. ii. fig. 6. 

 Miliolina venusta (Karrer), Cbapman, 1891, Journ. R. Micr. Soc. p. 573, 



pi. is. figs. 5 a & b, 6. 



This is a neat little form approaching M. tricarinata, but 

 with the angles of the preceding series of chambers projecting 

 beyond and through thefacesof the last-formed and enveloping 

 series. It is a familiar species in Gault washings from the 

 upper half of the formation. 



M. venusta is common in the Cambridge Greensand of 

 Swaffham. 



Miliolina tricarinata (d'Orbigny). 



Triloculina tricarinata, d'Orbigny, 1826, Ann. Sci. Nat. vol. vii. p. 299. 



no. 7 ; Modele, no. 94. 

 Miliolina tricarinata (d'Oib.), Cbapman, 1891, Journ. It. Micr. Soc. 



p. 574, pi. ix. figs. 9 a & b. 



