10 AMERICAN JOURNAL 



LEUCONIA. 

 1. Leuconia Sayi, KUster. 



Plate 18, figure 12. 



Ovate, thin, translucent, striate; spire elevated conical, apex 

 acute ; whorls 6, flattened, the last moderately convex ; aperture 

 small, oblong, lip sharp, columella biplicate, with occasionally a 

 tooth on the parietal' wall of old, specimens. Corneous. 



Length 5, diam. 3 mill. 



This species is referred to the United States by KUster, but is 

 unknown to American conchologists. Mr. Binney suggests that 

 the specimen described may have been a variety of Alexia my- 

 osotis. 



PEDIPES. 

 1. Pedipes lirata, W. G. Binney. 



Plate 18, figure 38. 



Shell globosely-conical, solid, with regular spiral lines ; spire 

 short, with obtuse apex ; whorls 3, the upper ones small, the last 

 equalling 5 — 6 of the total length ; aperture semicircular ; pa- 

 rietal wall with a strong transverse lamina, columella with two 

 acute approximate teeth. White, or yellowish. 



Length 3-3, diam. 2-5 mill. 



Cape St. Lucas, Lower California. 



BLAUNERIA. 

 1. Blauneria pellucida, Pfeiffer. 



Plate 18, figure 13. 



Shell reversed, ovate-elongated, pellucid, highly polished ; 

 whorls 7, the spire acuminate ; aperture narrowly ovate, lip 

 sharp, columella with a revolving fold. 



Length 2-5, diam. *8 mill. 



Florida. Found also in a garden in Washington, D. C, where 

 they are supposed to have been brought with plants from 

 Charleston, S. C. 



