Parail^' Poromyacidae. 

 Genus POHOMYA Forbes. 



POHOMYA JiI','IAI OiiKS IS Dall . 



Poromya j gnigiQensis Dall, 1903, Trans. vVagne r Free Inst. 3ei., 

 Philadel^ohia, vol. F, pt. 6, p. 1309, pi. 55, fi?. 23. 



Desoription .- "Shell anall; hinge. Interior and surface 

 sculpture Hire those of P. rranulata !"yst {and V/estendorp (l)J, 

 but differing from it by the absence of rostration at the post- 

 erior end, which is evenly rouiided thoiigh more attenuated than 

 the anterior end. Length 5.5, height 4.7, diameter 3.0 nm. " 



"All of the s-oeciiTiens found agree in snail cize, absence of 

 rostration, and closeness of the granular surface sculpture, which 



(1). JTouvelles 2es» dc s Oog. Foss. d'Aavers, p. C, pi. 2", fig. 



-, 1839. (as Corbula ?ranulata) ; H. and A. Adams, (Jen. Piec. 

 Moll. vol. 2, p. 257, pi. 97, figs. 2a, b (as Thetis .g-rsnu - 

 . , lata. ) , . , . , 



is dispose'? in radial linns." (Dall, 1903). 



■i-^yoe locality .- 3o«'den, Jamaica. 



Shell small, subequilateral , being more produced posteriorly, 

 decidp'^'ly inflate'"!, cnm'nressed toward the t>o _, jr end; antero- 



dorsal marsrin excavate", roux^ding into the broadly curve-^- anterior 



