LIOPLAX. 35 



times almost channelled, aperture small, 

 broadly ovate, umbilicus partly or entirely 

 closed. . Light olive color, blue within. 



Length 20, diam. 8 mill. 



Georgia and Alabama. 



I agree with Mr. Binney in considering Mr. 

 Lea's P. Elliottii to be identical with this spe- 

 cies. The carina is obsolete or nearly so on 

 the lower whorls, but is more or less distinct 

 on those of the spire. 



3. LIOPLAX SPILLMANII, Lea. 

 Plate 14, fig. 7. Plate 15, fig. 8. 



Shell subellipticaJ, rather thin, imperforate, 

 whorls 5, biangulated around the middle, the 

 angles carinate, sutures well impressed ; aper- 

 ture small, narrowly ovate, surface closely 

 covered with revolving striae. Light green, 

 bluish within. 



Length 33, diam. 13 mill. 



Jackson County, Mississippi. 



Very distinct from having a plane surface 



girdling each whorl, caused by the double 



carina. 



(61) 



