tt 
ie, Ae OI. 
SPHENODISCUS. 
Mies, I, 2, Syangooelisewis Karenos (Abra) 5-532 o-eastaose seus 0scessoccocosscc sassoyan cosas 
Shows the abnormally shortened living chamber and flaring abnormal aperture and 
partly absorbed sutures. Lander’s mill, Tippah County, Miss.; Ripley group; 
Coll. U. 8. Nat. Mus., No. 20577. 
IG SSeS LCMOCISCUS UCC LET Un kel oy reli typ ayes rage ste feat rte ee 
Birmingham, N. J.; Lower or Middle Greensand marls, Upper Cretaceous; Coll. 
Yale Univ. Mus., No. 200. 
ihe, |) Bp Swaeornnons Guemions lslyvening oo Seaeosckonteoossoece scot cesceeuceesess sess bsoceses 
Suture from specimen figured on Pl. V, fig. 4, showing the principal saddles and 
lobes, <3. ; 
WIGS wy OxmSphenodiscusipleumaseptay (Conia G)) jeter eee a Siben 
Buncombe Hills, Pontotoc County, Miss.; Ripley group, Upper Cretaceous; Coll. 
Frederick Braun. 
264 
