153 



* 



404 Transactions of the Society. 



167. Discorhina biconcava Parker and Jones. 

 166. „ dimidiata Jones and Parker. 



159. „ isabelleana d'Orbigny sp. 

 156. „ obtusa d'Orbigny sp. 



160. „ orbicularis Terquem sp. 



161. ,, parisiemis d'Orbigny sp. 

 polystomelloides Parker and Jones. 

 turbo d'Orbigny sp. 

 ventricosa Brady. 



176. Truncatulina lobatula Walker and Jacob sp. 

 * Anomalina ariminensis d'Orbigny. 

 195. Pulvinulina exigua Brady. 

 205. Iiotalia calcar d'Orbigny. 

 204. „ suessonensis d'Orbigny. 

 210. Nonionina pompilioides Fichtel and Moll sp. 

 214. „ scapha Fichtel and Moll sp. 



209. „ umbilicatula Montagu sp. 



220. Operculum ammonoides Gronovius sp. 

 219. „ complanata Defrance. 



In view of the recognised difficulty of determining the 

 geological age of derived fossils, it must be understood that the 

 above list is published with all reservations. 



Sub-Kingdom PROTOZOA. 



Class RHLZOPODA. 

 Oeder FORAMINIFERA. 



Family II. MILIOLIDiE. 



Sub-family 1. Nubecularinae. 



Nubecularia Defrance. 



1. (h-a) Nubecularia lucifuya Defrance. 



(Plate VI. figs. 1, 2.) 



The fragments figured are probably referable to this species. 

 It will be seen that sponge spicules are utilised in the construction 

 of the test, being imbedded in the shell substance. The incorpora- 

 tion of sand grains and shell fragments is a very frequent occur- 

 rence in recent Nubeculariie, but we have never seen another 

 instance of the utilisation of sponge spicules by this genus. 



Sub-family 2. Miliolininae. 



Spirolocidina d'Orbigny. 



5. S2>iroloculina excavata d'Orbigny. 

 (Plate VI. fig. 3.) 



This species was described by d'Orbigny from Miocene beds in 

 the Vienna Basin, but it does not appear to have been recorded 



* Species appearing in this place without any number will be found recorded 

 in the Supplement. 



