668 RHIZOPODS OF SYDNEY AND LISMOF{E, 



side-view ovate, and broadly oval. Orifice a mere slit at the 

 summit of a structureless collar ; collar conical in side-view. 

 Body-scales very ill-defined and lacking cement-marks at the 

 overlap, irregular in shape and size, oval or circular, mixed in 

 the same test, irregularly disposed. Each scale is furnished with 

 a depressed centre of similar outline, and these depressions are 

 often all the markings that can be seen on the test. 



Length 48-63, breadth 35-45, thick 34; collar 18-21, 5-7/x high. 



Coogee (24); Auburn (68); Botany (155); Lismore(185, 240, 

 307, 308). 



Var. TENUIS, n.var. (PI. xli., f.8). 



Test o\ate, much more slender than the type, rounded behind; 

 sides straight, or nearly so, towards the collar. Collar just a 

 mere constriction of the test, rectangular. No bodj^-scales 

 visible, surface covered with large, shallow depressions, which 

 are really the depressed centres of the scales. 



Length 60, breadth 42, collar 23/x. Botany (17). 



Sphenoderia sPHiERicA, n.sp. (PL xli., f.9). 



Test almost spherical, very slightly compressed, side-view 

 ovate-subglobose, end broadly oval. In front-view circular, 

 truncate anteriorl}-. Orifice a mere slit at the end of an invagin- 

 ate, structureless collar. Bodj^-scales distinct, oval, about five 

 across the face, (overlapping, all about the same size but irregu- 

 larly disposed. 



Length 57-63, breadth 57, thick 53; collar 21-23, scales 20 x 13//. 



Coogee (58). 



A rare species, found onl}^ in sample 58 (from Sphagnum at 

 Coogee) in which it is fairly plentiful. The collar is invaginate 

 in every specimen. 



Sphenoderia macrolepis Leidy, forma. 



Length 32, breadth 23, orifice 13/x. A single specimen noted 

 from Byron Bay. 



Test ovate, no neck at all, abruptly truncate in front, rim not 

 everted. The same three large scales in front-view, but broadly 

 rounded at the sides, not angular as in the type. (PI. xli., f. 10). 



