230 



FLABELLIFERA • SPHAEROMATIDAE 



Figure 100. Exosphaeroma alba: A; B, frontal lamina; C, uropod. Exosphaeroma 

 antillense: D; E, frontal lamina; F, uropod. Exosphaeroma diminuta: G; H, frontal 

 lamina; /, uropod. Exosphaeroma productatelson: J; K, frontal lamina; L, uropod. 

 Exosphaeroma yucatanum: M, pleon (from Richardson, 1905). 



Exosphaeroma antillense Richardson, 191 2d 

 Figure 100D,F 



DIAGNOSIS 9 5.0 mm. Frontal lamina anteriorly tapering to subacute apex. 

 Pleotelson with two broadly subconical submedian tubercles on inflated an- 



