26 Sm'EV.OTTOU, ForajHinifera from the Bay of Palermo. 



shorter and more inflated segments, these have the edge 

 of the test more rounded. 



Discorbina mida, n. sp. 



In the appendix to my Delos papers (1909) reference 

 is made to this species under the heading Discorbiha, sp. 

 p. 18 and figured on pi. 5, fig 11. On the Palermo slide 

 are numerous specimens and they are so unvarying in 

 their characteristics that I feel justified in giving a specific 

 name to them. They are transparent, and have from six 

 to eight segments showing on the superior surface, of 

 which four or five constitute the final convolution. The 

 pores can only be seen under a high power. The test is 

 convex on the superior surface, and on the inferior the 

 umbilical cavity is large and deeply sunk. The edge of 

 the test is slightly rounded, the segments arched, the 

 sutures sunk, and the margin of the test is lobulated. 

 The initial chamber is round and conspicuous. 



Discorbina vesiciilaris, Lamarck, sp. 



Beautiful specimens of this species are on the slide, 

 with well-developed astral flaps. 



Discorbina berthcloti, d'Orbigny, sp. 



Discorbina saulcii, d'Orbigny, sp. (PI. 3, fig. 11). 



The specimens are in good condition and agree with 

 examples Mr. Millettsent to me from the coast of Algiers, 

 80 fms. Very frequent. Numerous in the Bay of Eleusis. 



Discorbina riigosa, d'Orbigny, sp. 



Planorbulina, d'Orbigny. 

 Plattorbulina inediterranensis, d'Orbigny. 



Forms similar to the Delos specimens, figs, i, 2, pi. i, 

 (1909). 



