PUPA. 319 



introduce it under any other name. It is most likely 

 that P. cyclostoma, Kiistcr, is merely a small speci- 

 men of this species, its variation in size being very 

 considerable. G.] 



2. PUPA MODICA, GOULD. 

 PLATE LII. FIGURE 2. 



P. testa minuta, fragili, ovato-conica, elongata, albicla vel 

 cornea, edentata, imperforata ; anfractibus quinque con- 

 vexis, apice acuminata ; apertui'a campanulata, labro ex- 

 panso, baud planulato. 



SYNONYMS AND REFERENCES. 



Piq)a modica, GOULD, Proc. Bost. Soc. Nat. Hist. III. 40, June, 1S48. 



DESCRIPTION. 



SHELL small, delicate, elongated, ovate-conic, whitish 

 or pale horn-colored, irnperforate. Whorls five, convex, 

 the apex of the spire acute. Aperture expanded, lip 

 re volute, but not flattened ; throat destitute of teeth. 



Length of axis one-tenth of an inch ; breadth one- 



o 



fifteenth of an inch. 



GEOGRAPHICAL DISTRIBUTION. Found in Florida by 

 Mr. Bartlett. 



REMARKS. The form and other characters of this 

 shell are almost precisely those of Bulimus fallu-, 

 except that it is only about half as large, and has about 

 two whorls less to the spire. The aperture is somewhat 

 more bell-shaped ; and the lip is thin and re volute instead 



