Foraminifera and Ostracoda. 113 



vol. civ, p. 385 ; Brady, 1884, Rep. Chall., vol. ix, p. 649, pi. 

 Ixxxix, figs. 2-4 ; Chapman, 1894, Quart. Journ. G-eol. Soc., vol. 1, 

 p. 719 ; Idem, 1896, Journ. Roy. Micr. Soc., p. 591, pi. xiii, figs. 

 14a, b. 



The figured specimen is practically identical with] those of the 

 Cretaceous and Neocomian in England. It is also found in Tertiary 

 strata, and persists to the present day. 



GENUS TRUNCATULINA, cVOrbigny. 



TRUNCATULINA SCHLOENBACHI, Reuss sp. 

 (Plate XV, figs. 12a, 6.) 



Rosalina schloenbachi, Reuss, 1862, Sitzuugsb. d. k. Ak. Wiss. Wien, 



vol. xlvi, Abth. i, p. 87, pi. xi, figs. 5a-c. 

 Discorbina schloenbachi, Reuss sp., Egger, 1899, Abhandl. k. bayer. 



Akad. Wiss., Cl. ii, vol. xxi, Abth. i, p. 164, pi. xviii, figs. 19-21. 

 Chapman, 1904, Annals S. Afr. Mus., vol. iv, pt. v, p. 229, pi. xxix, 



figs. 16, 16a. 



In some respects, as in the embracing character of the last whorl 

 of chambers on the inferior face, this species resembles a discorbine 

 form, but as already pointed out (see this publication, 1904, p. 230), 

 it appears naturally to belong to the genus Truncatidina on account 

 of its finely perforated or smooth test. It is a typical Cretaceous 

 form. 



TRUNCATULINA UNGERIANA, d'Orbigny sp. 

 (Plate XV, figs. I6a, b.) 



Rotalina iingcriana, d'Orbigny, 1846, Forani. Foss. Vienne, p. 15 1 /, 



pi. viii, figs. 16-18. 

 Truncatulina ungeriana, d'Orb. sp., Brady, 1884, Rep. Chall. vol. ix, 



p. 664, pi. xciv, figs. 9a-c. 

 Egger, 1899, Abhandl. k. bayer. Ak. Wiss., Cl. ii, vol. xxi, Abth. 



p. 150, pi. xix, figs. 4-6. 

 Chapman, 1912, Mem. Nat. Mus. Melbourne, No. 4, p. 43, pi. vi, 



figs. 2a-c. 



Amongst the many modifications of this species, which ranges from 

 the Lower Cretaceous to recent deposits, the present examples agree 

 most nearly with the figured Chalk specimens in having a thicker test 

 and more umbonate facial aspect. 



