30 SlxyTLBOTTO^l, Fora)nin2fera f rout the Bay of Palermo. 



The form figured in the Delos paper (1909) fig. i, pi. 5, 

 is common. The one I have chosen for illustration is 

 opaque, and the pores do not show except under a high 

 power. It is the only one of the kind on the slide. 



Polystornella crispa, Linne, sp. 



Very frequent, the spinous condition of the small 

 tests is well marked. 



Polystornella verriculata^ Brady. 



Several well-marked but small examples are on the 

 slide. 



Polystornella fnacella, Fichtel and Moll, sp. 

 Large and beautiful examples occur. 



Polystornella suhnodosa, Munster, sp. 



The examples of this foraminifer are good, and are of 

 the usual milky-blue colour. 



Foraminifera. (PI. 3, fig. 17). 



This fragment is the only example on the slide, and 

 as the initial part is wanting, it cannot very well be placed 

 under a generic heading. The test is built up of fine 

 sand-grains, and is of a light-brown colour, the surface 

 slightly roughened. 



Foraminifera} (PI. 3, fig. 18). 



Several specimens are on the slide. This is a doubtful 

 foraminifer. It appears to be built up of very fine sand- 

 grains, the test is thin, and its superior face varies in 

 convexity. The under surface is concave in the centre. 

 The orifice is small, round, and at the bottom of the cavity, 

 but it is not always apparent. The colour is a silvery- 



