MANUAL OF CONG HO LOGY. 



FAMILY HELICIDsE, Vol. II. 



Genus HELIX, Linn. 



Group VII, HELICELLA. 



Section II, XEROPHILA. 

 (Continued from Vol. Ill, p. 169.) 



Subsection V. CANDIDULA, Kobelt. 1871. 



Conoidally depressed, periphery rounded. H. CANDIDULA, Stu- 

 der. European, Asiatic. 



It is Helicoijsis, Fitz. in part. 



Subsection VI. LEMNISCIA, Lowe. 1854. 



Subimperforate, trochoidal or globosely conoidal, periphery cari- 

 nate ; whorls 6-7, planate ; peristome acute, reflected and thick- 

 ened towards the axis. H. MICHAUDI, Desh. Madeira, H. MONI- 

 LIFERA, Webb and Berth. Canary Is. 



Monilearia, Mousson, 1872, is a synonym. 



Subsection VII. XEROLEUCA, Kobelt. 1877. 



Sublenticular, granosely striate, periphery laciniately carinated, 

 umbilicus wide, funnel-shaped, bordered by a cariua, H. TURCICA, 

 Chemn. Northern Africa. 



Subsection VIII. TURRICULA, Beck. 1837. 



Conical, umbilicated or perforate, costulate-striate, cretaceous 

 white, often fasciate, periphery angulated or carinated ; peristonie 

 labiate within. H. PYRAMIDATA, Drap. Mediterranean Region. 



Obelus, Hartrnann, Irus, Ads., Troclmla, Morch, and Crenea, 

 Albers (in part), are synonyms. 



Subsection IX. COCHLICELLA, Risso. 1826. 



Bulimiform, narrowly perforate, whitish, fasciate, periphery sub- 

 angulate ; peristome simple, acute, margins converging. H. ACUTA, 

 Miiller. Mediterranean Region. 



Ellsma, Leach, is a synonym. 





