_ -^09 - 



T^^pe locgvlit;, .- Bowden, Janiaiea. 



?.eniarks .- This sneoies, the earliest member of the siiId- 

 genus, is represented by several valves, of r/hich the largest 

 is slio:htly lar.o'er than the tj,"pe. The rjnbo is situated behind the me 

 ian horizontal, so that the anterior end is longer. ?rom the 

 other :?ellinidae this species is at once disting'uished bj- its 

 decide^lli? flexed posterior end and relatively coarse, irregular 

 coneentr ic sculpt are . 



Occur rence .- lower Miocene : Bov: den, beds, 3o?;den, Jamaica. 

 (Dall, 1900). 



