15 



LIMNEA RUGOSA, Val. 



Plate 3. — Fig. 4 — 5. 



L. "testa ovato-conica, tenui, alba, taenia fulva obsoleta 

 ornata; anfractibus rugis plurimis exaratis." — Valenc. 



SYNONYMS AND REFERENCES. 



Lymnea rugosa, Valenciennes. Receuil d'Obs. de 

 Zoologie, etc., par Humboldt et Bonpland, vol. ii. p. 

 250, pi. lvi. fig. 5, a, b. An. 1833. 



DESCRIPTION. 



Shell ovate-conic, thin, composed of six 

 convex whirls, upon the later ones of which, 

 the lines of accretion are very coarse: aperture 

 elliptic, longer than the spire, columella reflect- 

 ed upon the last whirl, so as to form a small 

 umbilic. 



Color white, with a transverse spiral fulvous 

 band. 



Geographical Distribution. Mexico. 



OBSERVATIONS. 



This species was discovered by M. Bonpland 

 in Mexico. My figures and description are 

 taken from the work cited. 



