in Limestones from Sinai. 311 



In the following descriptions, especially with regard to the 

 nummulites, I have had the advantage of consulting Professor 

 T. Rupert Jones, F.R.S., to whom I am much indebted. 



FORAMINIFERA. 



Family MILIOLIDiE. 



Subfamily MILIOLININ^. 



MiLiOLiNA, Williamson [1858]. 



Mioliolina circularis (Bornemann). (PI. XIV, Fig. 1.) 



TrilocuUna circularis, Bornemann, 1855 : Zeitsch. deutsch. Geol. Gesell., vol. vii, 



p. 349, pi. xix, fig. 4. 

 MilioUna circularis (Born.), Sherborn & Chapman, 1886 : Journ. Roy. Micro. Soc, 



ser. II, vol. vi, p. 742, pi. xiv, figs. 2«, b. 



A MilioUna occurs in a section of one of the Sinai limestones. 

 It perfectly agrees in outline and the disposition of the inner 

 chambers with the above species, especially those found in Tertiary 

 clays elsewhere, as the London Clay and the Septarian Clay of 

 Hermsdorf. 



Coll. Geol. Surv. Egypt, No. 3,902, Box No. 15Z. Libyan Series 

 (Lower Eocene) : Jebel Krer, Sinai. 



Subfamily ALVEOLININ^. 



Alveolina, d'Orbigny [1826]. 



AlveoUna Boscii (Defrance). (PI. XIII, Fig. 6a.) 



Oryzaria Boscii, Defrance, 1820 : Diet. Sci. Nat., vol. xvi, p. 106 ; Atlas Zooph., 



pi. xlviii, tig. 4. 

 Alveolina Boscii (Defr.), d'Orb., 1826 : Ann. Sci. Nat., vol. vii, p. 306, No. 5 ; 



Modeles, No. 50. Brady, 1884 : Rep. Chall., vol. ix, p. 222, pi. xvii, 



figs. 7-12. 



The elongate and more or less fusiform specimens of Alveolina in 

 the oldest Tertiary limestones of Sinai may be referred to the above 

 species. Schwager figures an allied form, A. frumentiformis,^ which 

 is more slender than A. Boscii, from the Egyptian limestone of the 

 Libyan Series. 



Coll. Geol. Surv. Egypt, No. 3,902, Box No. 15/. Libyan Series 

 (Lower Eocene) : Jebel Krer, Sinai. Rare. 



Alveolina (Floscidina) decipiens, Schwager. (PI. XIV, Fig. 2.) 



Alveolina {Flosculina} decipiens, Schwager, 1883 : Pal;Bontographica, vol. xxx. Pal. 

 Theil, p. 103, pi. xxvi (iii), figs. la-k. 



This interesting species appears to be similar to some Alveolims 

 from India, associated in like manner with Nummulites and Orbitoides. 

 It was found by Schwager in the Libyan Series of Nekeb-el-Farudj 

 and El-Guss-Abu-Said. 



Coll. Geol. Surv. Egypt, No. 3,902, Box No. 151. Libyan Series 

 (Lower Eocene) : Jebel Krer, Sinai. Frequent. 



1 Palajontographica, vol. xxx (1883), Pal. Theil, p. 100, ]A. xxv (ii), figs. ia-i. 



