GASTROPODA— MEL AN UDM. 



739 



Whorls close, sides flat or concave, the later whorls with a row 

 of strong nodes on each side next to the sutures. 



Glen Rose beds of Texas. 

 446. G. coalvillensis (Meek). (Fig. 1075.) Cretacic. 



Fig. 1074. Glauconia branneri. 

 (After Hill.) 



Fig. 1075 • Glauconia coalvillensis, 

 XYz- (After Stanton.) 



Often large ; whorls strongly angular, embracing so as to leave 

 a rather pronounced space exposed below the carina ; shoulder 

 with a submedian strong spiral, body with two fainter ones below 

 the carina. 



Colorado of Utah. 



Family Melaniid^e Lam. 

 CXXVI. Hypsipleura Koken: 

 Turreted shells with entire oval aperture, scarcely impressed 

 sutures, and gently convex whorls. Surface ribbed. 



447. H. ? occidentalis Stanton. (Fig. 1076, a.) Comanchic. 

 Small, with strong curved ribs, separated by more than their 



width ; fine revolving spirals, especially visible between the ribs. 

 Abundant in beds near the top of the Knoxville near Paskenta, 

 California. 



448. H. gregaria Stanton. (Fig. 1076, b.) Comanchic. 

 Smaller than the preceding and with the ribs only partly devel- 

 oped below the suture. Spirals absent. 



