F. Chapman — Egyptian Foraminifera. 17 



The Egyptian specimens are neat and typically sliaped. The 

 septation, however, is ratlier more crowded and narrower than 

 usual. In vertical section the test appears to be somewhat strongly 

 limbate. In the limestones from near Erment this species is very 

 common, but does not constitute a large proportion of the rock. 



It is interesting to note that the previous geological occurrences of 

 0. ammonoides agree with the age of these present rocks, since it has 

 been met with in beds not older than the Pliocene of Calabria ; it 

 was also found in the English Coralline Crag, and it has been noted 

 from the Pleistocene of Norway. As a recent organism it occurs 

 in fairly shallow water, and has a wide geographical range, including 

 the Mediterranean and the Gulf of Suez. 



Pliocene : near Erment, right bank of Nile Valley. Very common. 

 EXPLAXATIOX OF PLATE II. 

 Fig. 1. — Limestone with PateUina Er/i/pticnsh, sp. nov., aud A/veo/iiia lepidiila, 



Sch wager. ? Lower Miocene : between Cairo and Suez, x 12. 

 Fig. 2. — Vertical sections of PatcU'ma Er/Dpticnsis, showing the primordial spire. 



? Lower Miocene : between Cairo and Suez, x 16. 

 Fig. 3. — Basal section of PateUina E(jijptlensis, showing the central and cortical 



arrangement of the septa. ? Lower Miocene : between Cairo and Suez. 



X 16. 

 Fig. Jr. — Gypsina crassitesta, sp. nov., vertical section. ? Lower Miocene: between 



Cairo and Suez, x 16. 

 Fig. 5. — PohjtyeDia pnpunwra, sp. nov., median section. ? Lower Miocene: between 



Cairo and Suez, x 16. 

 Fig. 6. — Limestone with OpercuUna ammonoides (Gronovius) in median section, and 



Textularla agghitlnans, d'Orb. From specimen D 5. Pliocene: near 



Erment, right bank of Nile Valley, x 13. 

 Fig. 7. — Limestone with Opcrculina ammonoides (Gronovius) in vertical section. 



From specimen D 5. Pliocene : near Erment, right bank of Nile Valley, 

 x 15. 

 Species of Foraminifer.4. described in this paper. 



1. £ilocuH)ia bulloides, d' Orb. . . . ? L. Miocene : between Cairo and Suez. 



2. ,, ,, var. i«o/«ff<a, d'Orb. ,, ,, ,, 



3. Miliolina ohlonga (Montagu) ... ,, ,, ,, 



4. ,, siihrotinida (Montagu) . . ,, ,, ,, 

 0. ,, trigoniila (Lara.) .... ,, ,, ,, 



6. ,, wjiala {A' Ovh.) .... ,, ,, ,, 



7. ,, semnuihim (Linne) ... ,, ,, >. 



8. ,, pohjgona (d'Orb.) ... ,, ,, >. 



9. OrhicuUiia adanca (Fichtel & Moll) . ,, ,, »» 



10. AlveoUna ellipsoidalis, Schwager . . ,, m »> 



11. ,, lepidiila, Schwager ... ,, ,, ■,■> 



12. Textiilaria afffflntiiiaiis, (VOrh. . . Pliocene: near Erment. 



13. ,, sagittiila, Defrance . . . ,, ,, 



li. Biffeiieriiia capreo/iis {iVOrh.) . . . ? L. Jliocene : between Cairo and Suez» 



15. Glohigerlna comjlohata, Brady . . . Pliocene : near Erment. 



16. PntcUi>ia Egijptieiisis, A\). now . . 'r" L. Miocene : between Cairo and Suez. 



17. Discorfniia g/uliii/iiris? [iVOrh.) , . ,, ,, >. 



18. Trniicafu/iiia Ungcriaun (d'Orb.) . . ,, ,, )> 



19. Gypsina rcsiciihiris ? (Parker & Jones) Pliocene : near Erment. 



20. ,, crassitesta, s^.-ao\. . . . v* L. Miocene : between Cairo aud Suez. 



21. Polytrema papyraeea, sp. nov. ... ,, ,, »> 



22. No)iio)iina Boiieuna, d'Orb. ... ,, ,, m 



23. Amphisteyiiia Zessoiiii, d'Orb. . . Pliocene, near Erment. 



24. OpercuViHu ammonoides (Gronovius) . ,, ,, 



OSTRACODA. 



Bairdia snhdeltoidea (Miinster) . . . . r' L. Miocene : between Cairo aud Suez. 



DECADE IV. VOL. VII. NO. I. 2 



