210 HELICID^ 



Fam. : HELICIDiE. 



(Sub-fam. : Helicin^.)^ 



Genus : 1. CERNUELLA, Schliiter. 



Etym. : — Lat. dimin. of cernuus, facing the earth. 



Type : — Helix variabilis, Draparnaud = virgata, DaCosta. 



(Selected by Gude & Woodward, 1921.) 

 {Helix, Helicella, vett. auctt.) 



1821, \ Helicella [pars] : Ferussac, Tahl. sijst. Limagons, Jan, 

 Jan. j ed., p. 41 (June ed., p. 37). 



1837. Xerophila [pars] : Held, Isis, xxx, hft. 12, col. 913. 



1838. CernueUa : Schluter, Kurz. syst. Verzeichn., p. 6. 



J^^* 1 Heliomanes : Brown, Illusf. Conch. Brit., ed. 2, p. 49. 



^^P^- r [Non Newman, March, 1840 (Coleopt.).] 



1840. j 



1856. Heliomane : Moquin-Tandon, Hist. Moll. France, ii, 



p. 259. 

 1892. Xeroampulla :] Monterosato, Atti Accad Sci. Palermo, 



Xerofusca : j Ser. Ill, vol. ii [Classe Sci., no. 2], p. 22. 



Xerolauta : \ 



Xerolincta : \ Monterosato, t. c, p. 23. 

 Xerolceta : 



Iceta : I 

 Xerovaria : ] 

 Xerambigua : ' 

 Xerolutea : 

 Xeromngna 

 Xeropicta : 

 Xerobulla : 

 Xeromunda 

 Xerocauta : 

 Xerovera : 

 Xerolissa : 



Monterosato, t. c., p. 24. 



Monterosato, t. c., p. 25. 



1. CernueUa virgata (DaCosta). 

 Etym. : — Lat. virgatus, striped. 



?1777. Helix zonaria, var. : Pennant, Brit. Zool., iv, 8vo, 



p. 138; 4to, p. 119, pi. Ixxxv, f. 133a. 

 1778. Cochlea virgata : DaCosta, Test. Brit., p. 79, pi. iv, f. 7. 

 1791. Helix zonaria [pars] : Gmelin, in Linn. Syst. Nat., 

 ed. 13, i, pt. 6, p. 3632. 



1 The first five genera here following have for some years been classed as 

 sub-genera of Helicella, a name to which they were not entitled, as pointed 

 out by Gude & Woodward, See Proc. Malac. Soc. Lond., xiv, 1921, p. 175. 

 In the same paper (pp. 181-184) details were set forth concerning those 

 sub-genera in the light of contemporary knowledge ; the present arrangement 

 is consequent upon later study of the group. 



