324 Transactions of the Society. 



at Selsey, one specimen only being recorded. Nothing further has, 

 therefore, been ascertained as to the true relationship of the form 

 since the Bognor specimens were described. It is not improbable 

 that, when further opportunities have been afforded for the exami- 

 nation of this test, it may be referred to another genus, possibly 

 to a genus hitherto undescribed, as the examination of specimens 

 from a series of typical tests of Thurammina papillata from the 

 North Sea has thrown no light upon the affinities of the Bognor 

 specimens, recorded under this name, with which ours is identical. 



Ammod/iscus Reuss. 

 51. Ammodiscus gordialis Jones and Parker sp. 



Trochammina squamata gordialis Jones and Parker, 1860, Quart. Journ. Geol. 



Soc, vol. xvi. p. 304. 

 Trochammina squamata var. gordialis Parker and Jones, 1865, Phil. Trans., 



vol. civ. p. 408, pi.' xv. fig. 32. 

 Ammodiscus gordialis (Jones and Parker) Brady, 1884, Foram. ' Challenger,' 



p. 333, pi. xxxviii. figs. 7-9. 

 Ditto. (Jones and Parker) Brady, 1887, Synopsis British Recent Forami- 



nifera. 

 Ditto. (Jones and Parker) Earland, 1905, Journ. Quekett Mier. Club, ser. 2, 



vol. ix. No. 57, p. 202. 



Recent. The specimens are quite characteristic and exactly 

 similar to those recorded from Bognor. Many of them show signs 

 of having been attached in life to other organisms. 



52. Ammodiscus incertus d'Orbigny sp. 



Operculum incerta d'Orbigny, 1839, De la Sagra's Hist. Physiq. etc., Cuba, 



" Foraminiferes," p. 49, pi. vi. figs. 16, 17. 

 Spirillina arenacea Williamson, 1858, Eec. For. Gt. Britain, p. 93, pi. vii. fig. 203. 

 Trochammina incerta (d'Orbigny) Goes, 1882, Kong. Svenska. Yet. Akad. 



Handling, Band 19, No. 4, p. 136, pi. xi. figs. 404, 405. 

 Ammodiscus incertus (d'Orbigny) Brady, 1884, Foram. ' Challenger,' p. 330, 



pi. xxxviii. figs. 1-3. 

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

 Ditto. (d'Orbigny) Millett, 1899, Journ. R. Micr. Soc. p. 362. 



Fossil only. Apparently from a number of different deposits 

 ranging from the Chalk, upwards, some of them being of compara- 

 tively large size. 



Trochammina Parker and Jones. 

 53. Trochammina 'inflata Montagu sp. 



Nautilus inflatus Montagu, 1808, Test. Brit., Suppl.,p. 81, pi. xviii. fig. 3. 

 Rotalina inflata (Montagu) Williamson, 1858, Rec. Foram. Gt. Britain, p. 50, 



pi. iv. figs. 93, 94. 

 Trochammina inflata (Montagu) Brady, 1884, Foram. ' Challenger,' p. 338, 



pi. xli. fig. 4 a-c 

 Ditto. (Montagu) Balkwill and Wright, 1885, Trans. R, Irish Acad. (Science), 



vol. xxviii. p. 331, pi. xiii. figs. 11, 12. 



