REPORT OR THE FORAMINIFERA. 
63 
Sub-family 6. Keramosphaerinse, — test spherical, chambers in concentric 
layers. 
Test spherical, composed of a multitude of more or 
less irregularly-shaped chamberlets arranged in 
concentric layers, .... Keramosphcera, Brady. 
Family III. ASTRORHIZIDJE. 
Test invariably composite, usually of large size and monothalamous ; often branched 
or radiate, sometimes segmented by constriction of the walls, but seldom or never truly 
septate ; polythalamous forms never symmetrical. 
Sub-family 1 . Astrorhizinse, — walls thick, composed of loose sand or mud, 
very slightly cemented. 
Test fusiform or depressed. Depressed forms either sub- 
lenticular with angular or irregularly radiate margin, 
or in branching masses. Apertures at the end of 
each ray or branch, ..... 
Test formed of mud with a chitinous lining ; more or 
less flask-shaped or subcylindrical, . 
Test subglobular, very irregular externally ; apertures 
numerous, situated in horn-like protuberances ; 
interior smooth, ..... 
Test adherent ; formed of mud with a chitinous basis ; 
either irregularly outspread, or columnar and branch- 
ing, ...... 
Test consisting of a large rounded mass of branching, 
radiating tubes, arranged in more or less distinct 
layers or tiers ; texture coarsely arenaceous, the 
sand-grains very loosely aggregated, 
Astrorliiza, Sandahl. 
Pelosina, Brady. 
Storthosphcera, Schulze. 
Dendroplirya, Str. Wright. 
Syringcimmina, Brady. 
Sub-family 2. Pilulinilise, — test monothalamous ; walls thick, composed chiefly of 
felted sponge-spicules and fine sand, without calcareous or other cement. 
Test nearly spherical ; aperture a long and more or less 
curved slit, ...... Pilulina, Carpenter. 
