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Subgenus Hal iris Dall. 



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TSRTlQOliDll (HiI.I::lS) JAIvIAIOEIISIS Dall. 



Yertjg ordia ( Haliris ) ja-iaicenc-is Dall, 190?, Trans. '.Vagner "^ree 

 Inst. 3c i., Philadelphia, vol. 5, pt . 6, p. 1511. 



Desoription .- "Shell small, thin, subouacirate, inflated, with 

 strong-ly prosocoelus bea>:s; sculpturtd. with about tv;ent^- seven 

 radial close- set ribs with narrower interspaces; a smooth, deep 

 lunar impression in fro.;t of, and a narrow, oscutcheon-like smooth 

 area behind them, the whole surface mimztely grcnulose; basal mar- 

 gin angularly produced near the middle, internally minutely fluted 

 in harmony with ribs; hinge normal; Alt. 4.75, locir . 4.5, diara. 

 4.6 mjn." 



"This has a s-eneral resemblsnce to 7, mississir)"oiensis .all. 

 (1) Eocene , but is smaller,, thinner, proportionately shor^'-er, 



(1). Idrm, -gv, 1510-1511, pi. 42. fig. 1. 



and more inflated." (Dall, 1905). 



■'•'yp e locality .- Bowden, Jamaica. 



Remarks .- Some of the valves at hand are larger than the 

 :"ational Museum speci- ens, one being especially large, with the 



