HELIX. 169 



inflated, aperture dilated-lunar, labiate within, the columellar 

 margin reflected. H. PISANA, Mull. 



Mostly European, but with representatives in Southern and Lower 

 California. 



Subsection II, HELIOMANES, Moquin Tandon. 1855. 



Globose, opaque whitish, with bands of darker color; aperture 

 semilunar. H. VAKIABILIS, Drap. 



Mostly European. 



Subsection III, HELICELLA, Moquin Tandon. 1855. 



Moderately or rather widely umbilicated, whitish, opaque ; aper- 

 ture semilunar, peristome usually labiate within. H. CESPITUM, 

 Drap. 



Mostly European. 



Subsection IV, JACOSTA, Moquin Tandon. 1855. 



Shell opaque, glabrous, whitish ; umbilicated sublenticular, with 

 marinate periphery, aperture oval, peristome labiate. H. EXPLANATA, 

 Miill. 



Europe, N. Africa, Caucasia. 



Crenea, Albers (in part). 



Additional subsections of Fruticicola will be included in the 

 succeeding volume of the Manual. 



Group VII, VALLONIA, Risso. 1826. 



H. PULCHELLA, Muller. PL 38, figs. 10-15. 



Umbilicated, subdepressed, whitish or greenish white, shining, 

 smooth ; whorls 3-1 a little dilated but not deflected in front; aperture, 

 subcircular, lip reflected, white, margins approaching. 



Diam. 3 mill. 



Europe, Madeira, Northern Asia, United States, China and Japan 

 (introd.), Australia (introd.), 



The principal synonyms are H. paludosa, Walker, H. nitidula, 

 Studer, H. crystallina, Dillw., H. Potua, Chier., H. rosalia, Risso, 

 H. minuta, Say (fig. 13). 



Var. COSTATA, Muller. Figs. 14, 15. 



Membranously costate. 



The synonymy includes H. erenella, Montg; and H. Alexandra, 

 Cox (fig. 12), Australia. 



