- 275 



OTitline of '"he P-rnbones. The granules inay he ohviousl^' arranrred 

 along- radial lix/ufe, o.-t; such arranffment is often ohscr.re or even 

 ah sent. 



Oceij.rrenoe .- lower Miocene ; Bowden heds. Bow den, Jamaica* 

 (Dall, 1907,). 



