LIMNEA EXPANSA. 29 



OBSERVATIONS. 



" This species is more nearly related to L. 

 reflexus, Nob., than to any other known species 

 of North America; but it is only necessary to 

 compare the two, in order to perceive a wide 

 difference between them. The present is smaller 

 and proportionally more slender, and the spire 

 is more attenuated." Say. 



LIMNEA EXPANSA, Raid. 



PLATE 9. FIGS. 6 8. 



L. testa inflato-conica, tenui, brevi, diaphana: apertimt 

 lata, labro repando: plica columellari profunda. 



SYNONYMS AND REFERENCES. 

 L. EXPANSA, HALD. In this work, October, 1840. 



DESCRIPTION. 



SHELL short, smooth, translucent, and fragile; 

 body whirl inflated: spire as long as the aper- 

 ture, and rapidly attenuated to an acute apex: 



