Recent and Fossil Foraminifera. 679 



175. Planorbulina laruata Parker and Jones. 



Planorbulina vulgaris var. larvata Parker and Jones, 1860, Ann. and Mag. 



Nat. Hist., ser 3, vol. v. p. 294. 

 Planorbulina larvata Id., 1865 Phil. Trans , vol. civ. p. 379, pi. xix. fig. 3 a, h. 

 Ditto. (Parker and Jones) Brady, 1884, Foram. ' Challenger,' p. 658, pi. xcii. 



fig. 5, 6. 

 Ditto. (Parker and Jones) Guppy, 1909, Trans. Canadian Institute, vol. viii. 



p. 387. 



Several specimens, in various stages of development. All 

 fossils ; some pyritised, and evidently from a clay, the others from 

 a shell-sand : the latter are not so well preserved as the former. 

 Brady's specimens were recent, from tropical shallow waters, and, 

 so far as we are aware, it has not previously been recorded as fossil 

 except by Mr. E. J. Lechmere Guppy (supra), who records it as 

 abundant in the shallow-water Miocene beds of Trinidad, West 

 Indies. 



Truncatulina d'Orbigny. 



176. Truncatulina lobatula Walker and Jacob sp. 



Nautilus lobahdus Walker and Jacob, 1798, Adam's Essays, Kanmacher's 

 edition, p. 612, pi. xiv. fig. 36 



Truncatulina lobatula (Walker and Jacob) Williamson, 1858, Eecent Foram. 

 Gt, Britain, p. 59, pi. v. figs. 121-3. 



Ditto. (Walker and Jacob) Brady, 1884, Foram. ' Challenger,' p. 660, pi. xcii. 

 fig. 10 ; pi. xciii. figs. 1, 4, 5. 



Ditto. (Walker and Jacob) Brady, 1887, Synopsis British Eecent Forami- 

 nifera. 



Abundant, both fossil and recent. Typical, and presenting 

 every aspect of this very variable species. Among the fossils are 

 some of a very regular depressed type, which renders them almost 

 indistinguishable from the genus Discorbina. 



177. Truncatulina variabilis gd'Orbigny. 



Truncatulina variabilis d'Orbigny, 1826, Ann. Sci. Nat., vol. vii. p. 279, No. 8. 

 Ditto. (d'Orbigny) Terquem, 1878, Mem. Soc. geol. France, ser. 3, vol. i. 



Mem. iii p. 20, pi i. fig. 18-25. 

 Ditto. (d'Orbigny) Brady, 1884, Foram. 'Challenger,' p. 661, pi. xcii. 



figs 6, 7. 

 Ditto. (d'Orbigny) Earland, 1905, Journ. Quekett Micr. Club, ser. 2, vol. ix. 



No. 57, p. 2-25. 

 Ditto. (d'Orbigny ) Sidebottom, 1909, Mem. and Proc. Manchester Lit. and 



Phil. Soc, vol. liii. pt. iii. No 21, p. 2, pi. i. figs. 5, 6, pi. ii. figs. 1-3. 



A great number of specimens, illustrating fairly well the 

 vagaries of T. lobatula, which have been separated under this name. 

 The majority are fossils, but many recent specimens occur. Eecent 

 specimens are recorded by Earland from Bognor — rare. Sidebottom 

 (suprd) figures a remarkable series of specimens from Delos. 



2 z 2 



