BRACHIOPODA — ORTHIDJE. 



269 



Fig. 323. Schizophoria swallovi, X /4- (After Hall.) 



213. S. resupinoides (Cox). Carbonic. 



Transversely ovate to subquadrate. Hinge line forming about 

 half the greatest width of the shell. Cardinal areas narrow, that 

 of the brachial valve being the higher. 



Kentucky, Arkansas, New Mexico. 



LVIII. Enteletes Fischer de Waldheim. 



Subglobular, plicate ; brachial valve the more convex. Hinge 

 line short. Cardinal area of pedicle valve high ; that of brachial 

 valve low, at times linear. Cardinal process small, erect and 

 multi-lobate. Between the much extended and parallel dental 



Fig. 324. a-d, Enteletes hemiplicata (Ind. Surv. ) ; e-g, Clitambonites diver sus, 

 ventral and dorsal views and interior of brachial valve (enlarged) ; h-k, Scenidium 

 anthonense, ventral, dorsal and cardinal views and interior of brachial valve( Minn. 

 Surv.). 



lamellae is a blade-like median septum extending from beneath the 

 beak and enlarging to the middle of the valve where it suddenly 

 terminates. Crural plates of brachial valve support long, curved 



