290 HELICID^E. 



11. BULIMUS HARPA. 



PLATE LIT. FIGURE 3. 



B. testa minima, conica, obsoleto-scalariformi, tenui ; 

 anfractibus cjuatuor, convexis ; apertura sub-circulari, sub- 

 obliquo ; labro acuto ; axe minute perforate. 



SYNONYMS AND REFERENCES- 



Helix fiarpa, SAY, Expcd. St. Peter's, II. 256, anno 1824. 

 Pupa castulata, MIGHELS, Proe. Bost. Soc. Nat, Hist. I. 187. 

 Pupa ? ANON. Am. Journ. Sc. 



Bulimus harpa, PFEIFFER, Zeitschr. fiir Malak. 1847, 147. 



Monog. Helic. Viv. II. 150. 



DESCRIPTION. 



ANIMAL not hitherto noticed. 



SHELL ovate-conic, scalariform, light yellowish horn- 

 color, thin and fragile ; whorls four, convex, the last two 

 ribbed with thin, prominent plates, the first two smooth ; 

 suture distinct ; aperture sub-circular, slightly oblique, 

 unarmed ; lip simple and thin, or modified by the last 

 rib ; axis minutely perforated. 



Length of axis one-fifth of an inch ; diameter one- 

 seventh of an inch. 



GEOGRAPHICAL DISTRIBUTION. Inhabits the North- 

 western Territory and the State of Maine. It has not 

 been noticed in the country intervening between these 

 two extremes, though it doubtless may be found. 



REMARKS. This species, described by Mr. Say under 

 the name which we have adopted, was discovered by him 



