6 Halkyard, Fossil Foraminifera of the Blue Marl 



DESCRIPTION OF GENERA AND SPECIES. 



SUB-KINGDOM : PROTOZOA. 



CLASS: RHIZOPODA. 



ORDER: FORAMINIFERA. 



FAMILY : MILIOLID^E. 



SUB-FAMILY : NUBECULARIN^E. 



Genus Nubecularia Def ranee. 



i. Nubecularia divaricata, Brady. 



Sagrina divaricata, Brady, 187Q, Ouart. Jour. Micro Sci., vol. 



XIX, N.S., p. 276, pi. VIII, figs. 22-24. 

 Nubecularia divaricata, Brady, Chall. Rep. 1884, p. 136, pi. 



LXXVI, figs. 11-15. 



A few single chambers of this species were found in the 

 upper portion of the Marl, the great majority being collected 

 almost at the summit of the northern part of the Cliff behind 

 the Bathing Establishment. 



(The specimens are all fragmentary, the characteristic 

 aperture, however, renders their identification certain). 



SUB-FAMILY : MILIOLININ^E. 



Genus Biloculina, d'Orbigny. 

 2. Biloculina ringens, (Lamarck). 



Miliolites ringens, Lamarck, Ann. Mus. 1804, 351, No. 1. 

 Biloculina ringens, d'Orbigny, Ann. Sci., Nat. VII, 1826, p. 



297, No. 2. 

 B. ringens, Brady, 1884, Chall. Rep., p. 142, pi. II, figs. 7, 8. 



The specimens are small and sometimes only represented 

 by casts and are by no means numerous. Generally speaking 

 the species seems to be confined to the upper half of the marl- 

 laeds. 



(The few specimens in the collection in perfect condition 

 are from Gathering 3 and of the type figured by Brady in the 

 Challenger Report, ut supra.) 



3. Biloculina antiqua. Karrer. 



Biloculina antiqua, Karrer, 1867, Sitz. k. Ak. Wiss. Wien. 

 LV, (i), p. 365, pi. Ill, fig. 7. 



