BY F. CHAPMAN. 387 



have succeeded in finding a small but representative series of 

 foraminifera, radiolaria, and ostracoda which I hope to describe 

 shortly. 



The only other allusion to Devonian foraininifera that I have 

 so far come across, is that by E. Wethered, in his paper on the 

 limestones of South Devon.* In speaking of the organic con- 

 stituents of the Gouiatite limestone (Upper Devonian) from a 

 quarry at Whiteway Farm, near Chudleigh, Mr. Wethered says 

 — " The specimens collected as typical of this limestone show it to 

 be quite different in structure from the beds below. There is a 

 fine crystalline groundmass in which are several fragmentary 

 remains of organisms. One of these appears to be a foraminifer, 

 and it is especially interesting as being the only one found in 

 my slides of the South Devon limestones. The Goniatite lime- 

 stone seems to have been formed by an accumulation of small 

 shells, foraminifera, etc., which have been filled in with a fine 

 calcareous mud." Wethered does not, however, refer the fora- 

 minifer he saw to any particular genus. 



Description, of the Foro,rtiini/era. 



Fam. ASTRORHIZID^. 



Subfam. SACCAMMININ.E. 



Genus PsammospH/Era Schulze. 



PsAMMOSPH.ERA XEMINGHENSI8, n.sp. (Plates xxxix , figs. 1-2; 



xl, fig.lO; xli., figs.11-12). 

 Description. — Tent rudely spherical to elongate Hask-shape. 

 Wall composed of granular particles neatly fitted together, form- 

 ing one or two layers, and distinct from the large crystalline 

 grains of the matrix more or less completely infilling the cavity 

 of the test. Apertures apparently between the components of 

 the test- wall or, more rarely, as a slight protuberance on the 

 surface. 



Diameter, circ. 0*4 to 0'75 mm. 



Observations. — The above form has a certain resemblance to 



* "On the Microscopic Structure and Re.sidue.s Insoluble in Hydro- 

 chloric Acid in the Devonian Limestones of South Devon." (^uart. Journ. 

 Geol. Soc, Vol.xlviii., 1892, pp.377-387. 



