696 Transactions of the Society. 



217. Polystomella macella Fitchel and Moll sp. 



(Plate XXI. fig. 3«, &.) 



Nautilus macellus var. a, Fichtel and Moll, 1803, Test. Micr., p. 66, pi. x. 



figs. e,f, g. 

 Polystomella planulata Lamarck, 1822, Anim. sans Vert., vol. vii. p. 625, No. 3. 

 Polystomella macella (Fichtel and Moll) Parker and Jones, 1860, Ann. and 



Mag. Nat. Hist., ser. 3, vol. v. p. 104, No. 8 

 Ditto. (Fitchel and Moll) Brady, 1884, Foram. ' Challenger,' p. 737, pi. ex. 



figs. 8, 9,11, and 10 (?). 

 Ditto. (Fichtel and Moll) Earland, 1905, Journ. Quekett Micr. Club, ser. 2, 



vol. ix. No. 57, p. 230. 



Common, both recent and fossil. The species is commonly 

 distributed all round our coast, and extends at least as far north as 

 Shetland, but it was not recorded as a British form until 1900, 

 when J. Wright published his list of Foraminifera from Dog's Bay, 

 Connemara.* 



Sub-family 3. Nummulitinae. 



Amphistegina d'Orbigny. 



218. Amphistegina lessonii d'Orbigny. 



Amphistegina lessonii d'Orbigny, 1826, Ann. Sci. Nat., vol. vii.p. 304, No. 3, 



pi. xvii. figs. 1-4. 

 Amphistegina nucleata Terquem, 1882, Mem. Soc. geol. France, ser. 3, vol. ii. 



No. 3, p 123, pi. xiii. fig 1. 

 Amphistegina lessonii (d Orbigny) Brady, 1884, Foram. ' Challenger,' p. 739, 



pi. cxi. figs. 1-7- 



A number of small and somewhat worn specimens are probably 

 referable to this species, and are derived from the Almolina lime- 

 stone of the Mixon Eocks, having in many cases portions of the 

 silicious matrix attached. The species has been recorded as far 

 back as the Eocene of the Paris basin, and is abundant in many 

 Miocene deposits. 



Operculina d'Orbigny. 



219. Operculina complanata Defrance sp. 



(Plate XXI.,' fig.. 4 a, 6.) 



Lenticulites complanata Defrance, 1822, Diet. Sci. Nat., vol. xxv. p. 453. 

 Operculina complanata (Defrance) d'Orbigny, 1 26 Aim. "Sci. Nat., vol. vii. 



p. 281, pi. xiv. figs. 7-10; Module No 80. 

 Ditto. (Defrance) Brady, 1884, Foram. ' Challenger,' p. 743, pi. cxii. figs. 



3, 4, 5, 8. 



* Irish Naturalist, March 1900. 



