INSTITUTE OF SCIENCE, PHILADELPHIA. 159 



ovate, rounded externally, its axial margin straighter ; the peristome is not 

 double, a feature always due to the stage of growth, and which should not be 

 used systematically. Max. Ion. of shell 24.5 ; max. lat. 8.5 ; max. diam. of 

 aperture 4.0; of the peristome 6.3 ; of the basal disk 5.5 mm. 



This fine species will be figured in Part II. of this paper. It is one of the 

 largest American species of the group, and the first to be noted from the 

 tertiaries of the Atlantic coast. It is named in honor of M. E. de Boury, of 

 France, whose excellent contributions toward the monography of this family 

 are well known. The single specimen found is somewhat rubbed, but enough 

 uninjured surface remains to indicate the character of the secondary sculpture. 



Superfamily GYMNOGLOSSA. 



Family EULIMID^. 



Genus EULIMA Risso. 



Section Eulima s. s. 



Eulima conoidea Kurtz & Stimpson. 



Plate 5, figure 11. 



Eulima conoidea K. & S., Proc. Boston Soc. N. H. iv. p. 115, 1851 ; Kurtz, Cat. Carolinian 

 Marine Shells, p. 8, i860. 



Pliocene of the Caloosahatchie and Shell Creek, Florida, and of South 

 Carolina. Living from North Carolina to the Florida Keys. 



This fine species has not hitherto beeii adequately figured. The recent 

 form was described in 1878 as Odostoinia alba Calkins, as I have been able to 

 determine by a careful examination of Mr. Calkins's type-specimen. 



Eulima subcarinata Orbigny. 



Several immature specimens from the Caloosahatchie marls appear to be 

 referable to this species. The recent form, which is E. oleacea Tryon (Man.viii. 

 pi. 69, fig. 36), not of Kurtz and Stimpson, extends from the Antilles to North 

 Carolina at moderate depths. 



Eulima gracilis C. B. Adams. 



Pliocene of the Caloosahatchie. Living from the Antilles and Yucatan 

 northward to North Carolina. 



Eulima intermedia Cantraine. 



E. intermedia (Cantr.) Dall, Rep. Blake Gastr., p. 327, 1889. 

 E. oleacea Kurtz & Stimpson, from types, not of Tryon. 



Pliocene of the Myakka River, Florida, and of Britain (Crag7?^i? Jeffreys). 

 Living on both sides of the Atlantic ; abroad from Britain to the Mediterra- 

 nean ; in America from New England to Barbados. 



