11- 



il2£. looalit:; .- Bowden, Jaraai-a. 



Hernr>s ., Tl^.c collections at ._ ve not xuri' 



u.c.icional representatives of this speeief: 

 from a single valve. 



anj- 

 ribed 



Occurrence.- Tower Miocene : Bow den beds, Bo'^'den, Jamaica 

 (Dall, 1903). 



