66 F. Chapman — Foraminiferal Limestones from Egypt. 



A species nearly allied to the above, namely, B. foveolata, 

 G. S. Brady, is found in recent deposits,' and our Egyptian 

 specimens are not unlike it as regards the superficial markings 

 on the carapace, but the lateral view of the recent species has an 

 outline which is perhaps more nearly comparable with that of 

 B. suhtrigona, Bornemann. 



Formerly recorded from Egypt from an Alveolina - limestone 

 doubtfully referred to Lower Miocene, from a locality between 

 Cairo and Suez. 



Two specimens measuring in length 1*7 mm. and 1'2 mm. 

 respectively. 



Found in No. 3,335ft, Alveolina - limestone. Farafra Oasis : 

 Libyan Series. 



Bairdia Beadnelli, sp. nov. (PI. V, Figs, la-c.) 



Carapace elongated, somewhat compressed ; height equal to half 

 the length, and situated in front of the middle. Laterally the shape 

 is somewhat amygdaloidal. Anterior extremity obliquely rounded 

 and angulated at its junction with the dorsal margin; posterior, 

 somewhat acute. Dorsal margin well arched, sinuated in front ; 

 ventral, straight or slightly convex towards anterior extremity. 

 Outline seen from above compressed ovate, thickest in the middle. 

 End view sub-spherical. 



Length of largest specimen, 1*6 mm.; greatest height, -9 mm. ; 

 thickness of carapace, -73 mm. 



In lateral aspect this species is not unlike B. CrossTceiana, Brady,^ 

 but without the denticuli on the ventral margin. The edge view of 

 our specimens is, however, very different, the greatest thickness 

 being in the middle of the carapace. This species is distinguished 

 by the name of the collector of the specimens which have yielded 

 so many interesting forms. 



Found rarely in No. 3,335&, Alveolina-limestone. Farafra Oasis : 

 Libyan Series. 



Bairdia minuta, sp. nov. (PI. V, Figs. 2a-c.) 



Carapace compressed ; seen from the side sub -trigonal. The 

 anterior extremity rounded at the antero-ventral angle, and slightly 

 sinuate on the opposite or antero - dorsal angle. The posterior 

 extremity is acute and sinuate. The dorsal margin well arched in 

 the middle, the ventral hollowed below the middle. Edge view 

 sub-ovate, but thin ; end view sub-oval. 



Length, '9 mm. ; height, "5 mm. ; thickness, '33 mm. 



One example of this small but neatly-shaped form found in 

 No. 3,3356, J.^«7eoZma-limestone. Farafra Oasis : Libyan Series. 



Cythere farafrensis, sp. nov. (PL V, Figs. 3a-c.) 

 Carapace tumid, sub-quadrangular in its lateral aspect; greatest 

 height in front, and equal to nearly two-thirds of the length. The 

 anterior extremity somewhat straight and gently rounded at the 



1 G. S. Brady, 1880 : Eep. Chall. Exp., Zool., pt. iii, p. 56, pi. viii, figs, la-/, 

 2«-/. 



2 Eep. Chall. Exp., Zool., pt. iii, p. 58, pi. ix, figs. Sa-c. 



