324 Transactions of the Society. 



Atractolina sp. Von Schlicht, 1869, Forain. Septar. Pietzpuhl, p. 70, No. 397. 



pi. xxv. figs. 9, 10. 

 Pyrvlina sp. Von Schlicht, 1869. Foram. Septar. Pietzpuhl, No. 442, pi. xxv. 



fig. 53. 

 Polymorphina acuminata (d'Orbigny) Brady, Parker and Jones, 1870, Trans. 



Linn. Soc. Lond., vol. xxvii. p. 219, pi. xxxix. fig. 4, a b. 



Frequent, all fossil, and from various sources. 



This pretty little fusiform variety of the lactea type might 

 easily be passed for a Glandulina, but for the oblique direction of 

 the Hush sutural lines. 



It occurs iu the Chalk and subsequent Eocene deposits, but is 

 apparently an extinct variety. 



356. Polymorphma lactea var. amygdaloides Eeuss. 



GldbuUna amygd'iloides (?) Reuss, 1851, Zeitschr. d. deutsch. geol. Gesellsch., 



vol. iii. p. 82, pi. vi. fig. 47. 

 Polymorphina amygdaloides Eeuss, 1855, Sitzungsb. d. k. Akad. Wiss. Wien, 



vol. xviii. p. 250, pi. viii. fig. 84. 

 Polymorphina Itctea var. amygdaloides (Reuss) Brady, Parker and Jones, 1870, 



Trans. Linn. Soc. Lond., vol. xxvii. p. 214, woodcuts. 

 Polymorphina amygdaloides (Reuss) Brady, 1884, Foram. ' Challenger,' p. 560, 



pi. lxxi. fig. 13. 

 Ditto. (Reuss) Millett, 1903, Malay Foraminifera, Journ. R. Micr. Soc, p. 261. 



One specimen, infiltrated with pyrites, probably derived from 

 a Tertiary clay. The variety, like the type, has a very wide range 

 in time, and probably extends back to the Jurassic epoch. It is 

 merely a compressed variety of P. lactea W. and J. sp. 



132. Polymorphina myristiformis Williamson. 

 This is a frequent species in the shore-sands. 



357. Polymorphina prdblema d'Orbigny. 



Polymorphina (Guttulina) prdblema d'Orbigny, 1826, Ann. Sci. Nat., vol. vii. 



p. 266, No. 14; Modele, No. 61. 

 Guttulina problema (d'Orbigny) d'Orbigny, 1846, Foram. Foss. Vienne, p. 224, 



pi. xii. figs. 26-28. 

 Guttulina austriaca (d'Orbigny) d'Orbigny, 1846, Foram. Foss. Vienne, p. 223, 



pi. xii. figs. 23-25. 



EXPLANATION OF PLATE XII. 



Linderina bntgesii Schlumberger. 



Fig. 1. — Early stage. Side view. 



„ 2. Ditto. Ditto. 



,, 3. Ditto. Edge view. 



,, 4. — Adult stage. 



,, 5. Ditto. 



,, 6. — Horizontal section of a large specimen. 



,, 7. — Vertical section of a large specimen. 



(All figures drawn to a magnification of 100 diameters.) 



