less strongly curved umbones, smaller and shallower Irmule and 

 inore 'oronoiuioe'l anterior carina. 



fl). Trans. Wagner Free Inst, Sci,, ?hiladelx)hia, vol. ,?, ot . 4, 

 p. 811, -ol. 35, figs. 1-3, 1898. 



This species is narae'^ -^"■"^ '!> ss J. A. Gardr^er of the Johns 

 Hopkins University, "/ho is malcing notev/orthy contributions to the 

 Tertiary paleontology of the Atlantic Coastal orovince. 



Oociirrence .- lov^er Miocer^ : B-^v/den heds, Bov;den, Jamaica. 



