12 SiDEBOTTOM, ForaiiiiiiifeTa froiu the Island of Delos. 



some of them appear to me to be near Rosalina {Dis- 

 corbind) binkhorsti Reuss ('6l), and Discorbina valvtdata^ 

 d'Orbigny ('39). These occur frequently. Complanate 

 specimens, Fig. 2, PI. 4, approach the Rosalina (^Dis- 

 corbina) cava, d'Orbigny ('39), and are frequent. 



Discorbina rosacea, d'Orbigny, sp. (PI. 4, figs. 3, 4, 5). 



Rotalina inauiilla, WiUiamson ('58), p. 54, pi. 4, figs. 

 IO9-111. 



Rotalia rosacea (d'Orb.), Parker, Jones, and Brady 

 ('65), p. 25, pi. 2, fig. 71. 



Discorbina rosacea (d'Orb.), Brady ('84). p- 644, pi. 87. 

 figs. I, 4. 



D. rosacea (d'Orb.), Flint ('99), p. 327, pi. 72, fig. 3. 



This is present in two forms, one of which, Figs. 3, 4, 

 PI. 4 (*) is very large, the test rather complanate, and of 

 a rich brown colour. The perforations are much more 

 numerous on the inferior surface. Very frequent. The 

 other form. Fig. 5, PI. 4, is not nearly so large, and the 

 test is almost free from colour. A single row of con- 

 spicuous perforations decorate each chamber close to the 

 outside edge. I have specimens identical with these 

 from Bantry Bay, Ireland. Rather rare. 



Discorbina araucana, d'Orbigny. 



Rosalina arancana, d'Orbigny ('39), p. 44, pi. 6, figs. 

 16- iS. 



Specimens occur which may be placed under this 

 heading, but they are not typical. Very rare. 



Discorbina vilardeboana, d'Orbigny, sp. 



Rosalina vilardeboana, d'Orbigny ('39), p. 44, pi- 6, 

 figs. 13-15. 



