Recent and Fossil Foraminifera. 441 



Sub-family 2. Rotalinae. 

 Patellina Williamson. 



152. Patellina corrugata Williamson. 



Patellina corrugata Williamson, 1858, Eecent Foram. Gt. Britain, p. 46, 



pi. iii. figs. 86-9. 

 Ditto. (Williamson) Brady, 1884, Foram. 'Challenger/ p. 634, pi. lxxxvi. 



figs. 1-7. 

 Ditto. (Williamson) Brady, 1887, Synopsis British Eecent Foraminifera. 



Fossil and recent. The fossil specimen is of a very thin and 

 scale-like type. The only hitherto recorded specimens are from 

 Post-Tertiary beds of the north-west of Ireland and Scotland. 



Discorbina Parker and Jones. 



153. Discorbina turbo d'Orbigny sp. 



Sotalia (Trochulina) turbo d'Orbigny, 1826, Ann. Sci. Nat., vol. vii. p. 274, 



No. 29 : Modele No. 73. 

 Discorbina turbo (d'Orbigny) Parker, Jones, and Brady, 1865, Ann. and Mag. 



Nat. Hist., ser. 3, vol. xvi. p. 30, pi. ii. fig. 68. 

 Ditto. (d'Orbigny) Brady, 1884, Foram. ' Challenger,' p. 642, pi. lxxxvii. 



fig. 8. 



Common in the fossil state, and a few specimens apparently 

 recent. The fossils vary greatly in size, probably indicating 

 different sources of origin. 



154. Discorbina gldbularis d'Orbigny sp. 



Rosalma ylobularis d'Orbigny, 1826, Ann. Sci. Nat., vol. vii. p. 271, pi. xiii. 



figs. 1-4 ; Modele No. 69. 

 Rotalina concameruta (Young) Williamson, 1858, Eecent. Foram. Gt. Britain, 



p. 53, pi. iv. figs. 104, 105. 

 Discorbina globidarh (d'Orbigny) Brady, 1884, Foram. ' Challenger,' p. 643, 



pi. lxxxvi. figs. 8, 13. 

 Ditto. (d'Orbigny) Brady, 1887, Synopsis British Eecent Foraminifera. 

 Ditto. (d'Orbigny) Sidebottom, 1908, Mem. Manchester Lit. and Phil. Soc, 



vol. Iii. No. 13, p. 11, pi. iii. figs. 3-8, and pi. iv. figs. 1, 2. 



Rare in both recent and fossil conditions. 



155. Discorbina valvulata d'Orbigny sp. 



Rosalina valvulata d'Orbigny, 1826, Ann. Sci. Nat. vol. vii. p. 271, No. 4. 

 Ditto. d'Orbigny, 1839, Foram. Cuba, p. 103, pi. iii. fics. 2L-3. 

 Ditto. d'Orbigny, 1839, Foram. Canaries, p. 136, No. 28, pi. ii. figs. 19-21. 

 Discorbina valvulata (d'Orbigny) Jones and Parker, 1872, Quart. Jour. Geol. 



Soc, vol. xxviii. p. 114. 

 Ditto. (d'Orbigny) Bradv, 1884, Foram. 'Challenger,' p. 644, pi. lxxxvii. 



figs. 5-7. 



Fossil, apparently derived from a clay. 



