dall] notes on some upper cretaceous volutid.e 23 



the strong and flaring siphonal fasciole ; umbilical funnel smooth 

 and almost filled by a smooth appressed mass of callus, continuous 

 over the body and much thickened on the posterior part of the inner 

 lip ; surface without any sculpture except microscopic incremental 

 and revolving lines ; outer lip defective but apparently simple and 

 sharp. Length (fig. 11) 50, max. breadth about 38 mm. 



Collected from the Claibornian Eocene of Richmond county, 

 Georgia, by Mr. S. W. McCallie, of the State Geological Survey, 

 one-half mile north of Hephzibah, Georgia. 



This was first described from a specimen (figs. 11, 12) in which 

 the external coating of enamel had been largely removed by decay 

 or wear. It was supposed to be a subgenus of Turbinella, but the 

 discovery of other specimens, later, has led me to assign it full 

 generic rank. One of these (fig. 13), though in some respects 

 poorly preserved, showed that the adult shell is completely covered 

 by a coat of enamel, something hitherto unknown among the Tur- 

 binella species, recent or fossil. This character, therefore, must be 

 added to those given in the original subgeneric diagnosis, to render 

 the generic description complete. 



Though representing a collateral branch of the stem from which 

 the Volutidse are descended, this genus is sufficiently allied to find 

 a place in this paper without incongruity ; and this is the more 

 desirable since no figure of the fossil has been published up to the 

 present time. 



The specimens figured form part of the collection of Tertiary 

 fossils of the U. S. Nat. Museum, No. 110,379. 



