GASTROPODA— MURCHISONIDM. 



651 



Fig. 889. Hormotoma major, X 2 A- (After Ulrich, Pal. Minn.) 



151. H. (Hormotomina*) maia (Hall). (Fig. 891.) Devonic. 

 Whorls embracing more strongly, shoulder more convex, lines 

 of growth strong ; a faint carina close to the suture and another 

 in the middle of the band. Onondaga limestone of Ohio. 



Fig. 890. Hormotoma desiderata, natural Fig. 891. Hormotoma (Hormoto- 

 size and part of a whorl enlarged. (After mina) maia, natural size and a single 

 Hall, Pal. N. Y., V.) whorl enlarged. (After Pal. N.Y.,V.) 



