290 PROCEEDINGS OF THE ACADEMY OF [Sept.^ 



outline, Urate sculpture and varicose axials, all of which present a 

 general aspect which strongly suggests the Cretaceous species under 

 discussion. Ranularia piraster, however, has a dentate inner margin 

 on the outer lip, a feature characteristic of the Tritonidse but not 

 present on Lirosoma cretacea and uncommon in the Busyconidse. 



Family BUOCINID^. 



Genus SEMINOLA n. gen. 



Etymology: Seminoles, a tribe of Indians who formerly lived in 

 the southeastern coastal plain region. 



Type: Seminola crassa n. sp. 



Shell compact, of medium size or large, globose; spire low; whorls 

 not very numerous, increasing rapidly in size to an inflated body; 

 protoconch unknown; both axial and spiral sculpture developed, the 

 axial more or less obsolete on the body of the adult ; suture obscure 

 or deeply impressed; body well rounded medially, constricted and 

 folded inward at the base of the body where a deep sulcus, parallel 

 to the spiral sculpture, separates the body from the pillar; aperture 

 broad and subovate, produced anteriorly into a short, recurved canal; 

 outer lip simple or varicose, a strong tooth-like projection occurring 

 on the margin at the anterior extremity of the spiral sulcus at the 

 base of the body; inner lip excavated medially; columella reinforced, 

 marked by an oblique plication near the anterior extremity and 

 along the margin of the anterior canal; parietal wall calloused, 

 sometimes heavily; pillar broad and short, slightly recurved; um- 

 bilical chink shallow; anterior fasciole broad, oblique, heavily 

 corrugated. 



This genus is well characterized by globose shells of different 

 sizes, having both spiral and axial sculpture variously developed. 

 The pillar is broad and short, being separated from the body by a 

 deep spiral sulcus that terminates with a tooth-like projection on the 

 margin of the outer lip, a shell character which possibly indicates the 

 former position of the eye-stalk of the animal. The genus is proposed 

 to include five species heretofore unknown in the literature : two from 

 Coon Creek, one from Owl Creek, and two from the Ripley of Texas; 

 and one species from Pataula Creek, Georgia, described by Gabb 

 under the name of Nassa globosaP- There is no figure of this species, 

 but the type, which is imperfect, may be seen at the Museum of The 

 Academy of Natural Sciences of Philadelphia. The generic deter- 



22 Gabb, W. M., 1876, Proc. Acad. Nat. Sci. Phila., p. 282. 



