KAEAKOEAM STONES, OR SYEINGOSPHJ1EID.E. 9 



and the fact that the tubes are not formed by arenaceous particles, separate the Syringosph(e- 

 ridce from the arenaceous foraminifera of the Parkeria group. 



It is evident that the calcareous granules and spicules were not collected by these tube- 

 makers mechanically, and their occasional presence in the tubes themselves, and their extend- 

 ing beyond them, but still clinging to the furry outside in other instances, show that the tube 

 structure is organic in origin and that it resembles that of some Rhizopoda. The symmetry 

 of the bodies could only have been maintained by a common sarcode, enveloping the whole ; 

 food could only have been obtained by pseudopodia from the tubes, and these soft external 

 substances would not be unfavourable to the shape of the mass, and to its never being found 

 worn by resting or attrition. 



That these fossils are rhizopodous is almost a necessary belief, but it is evident that 

 they cannot be brought within the order Radiolaria any more than they can within any 

 group of the foraminifera. It remains, therefore, to establish a new order, the Syringosphce- 

 ridee, amongst the class Rhizopoda, and to include these triassic or lower liassic fossils 

 within it. 



