- 117 - 



Section Possularca Sossrrann. 

 AROA (FO^JSUXAROA) ADAlvISI Ball. 



Area Goelata Oonrad, 1845, Pos. Med. Ter. U. 3., p. 61, pi. 52, 



fig. 2. 

 A roa GOelata Donrad, Tuomey and Holmes, 1857, Pleioc. ?os . South 



Carolina, p. 22, pi. 4, fi^s. 5, 6a. 

 Hot A. ooelata Reeve, 1844. 

 Area A dam si Shuttlevzorth, Guppy, 1874, Geol. Kag. Decade 2, vol. 



1, p. 443 (check list). 

 Area Adams i Shuttleu'ortn, Dall, 1385, Bull. I'ns. Oorapt. Zool., 



Harvard, vol. 12, p. 243, 

 Area Adamsi ( Shuttlev7orth Mss.) Smith, 1888, JoTir. lin. Soc., 



London, Zool., vol, 20, p. 499, pi. 30, figs. 6, 6a. 

 Barb at i a (Fossular£a) Adamsi ( Shuttlev/orth) Smith, Lall, 1898, 



Trans, "/agner 'S'ree Inst. 3ci., Philadelphia, vol. 3, 



pt. 4, pp. 629-630. 

 Area adamsi Smith, Dall 8: Simpson, 1901, 3ull. U. S. Pish Gomm. , 



vol. 20, pt. 1, p. 461. 

 Barhatia (Tossularca.) Adamsi Smith, Dall, 1915, Bull. IJ. 3. ITat. 



r.'us., no. 90, p. 121. 



Descripti on.- "Trapezoidal, disk widely and not profou::d- 

 ly contracted; ribs numerous, alternated towards the base, tuber- 



