180 PROCEEDINGS OF THE MALACOLOGICAL SOCIETY. 



Section 1 : Capillifera, s.s., as above. 

 Section 2 : Petasiella, n.nov.'^ 



Type, Helix unidentata, Draparnaud (selected by Westerlund, 

 1902). 



1826. Trochiscus [pars] : Held, Isis., xxx, Mt. 12, col. 915. [Non 

 Heyden, 1826, (Arach.).] 



1837. Petasia [pars] : Beck, Index Moll., p. 21. [Non Stephens, 1828 



(Lepidopt.).] 



1838. CtrnueUa [pars] : Schliiter, Kurz. syst. Verzeichn., p. 6. 

 1847. Petasina [pars] : Beck, Amtl. Ber. 24, Versamml, Deutscli. 



Natnrf., p. 122. 

 1889. Perforatella, Schliiter : Westerlund, Fauna Palaarct. Region, 

 ii, p. 32. [Non Schliiter.] 20 



Section 3 : Ponentina, Hesse, Arch. f. Mollkunde, 1921, 



p. 62. 

 Type, Helix subvirescens, Bellamy.^^ 

 Section 4 : Perforatella, Schliiter, 1838. [Non Westerlund, 



1889, Pilsbry, 1895, et alii.] 

 Type, "P. hidentata, m.."[= hidens, Chemnitz]. 



1826. Trochiscus [pars] : Held, Isis, xxx, hft. 12, col. 915. [Non 



Heyden, 1826 (Arach.).] 

 1838, Perforatella : Schliiter, Kurz. syst. Verzeichn., p. 4. 

 1855. Dibothrion : Pfeiffer, Malakozool. Blatt., ii, p. 128. 



Section 5 : Metafruticicola, von Ihering, 1892. 



Type, Helix joellita, Ferussac (selected by Tryon, 1888 ^^). 



1884. Pseudocampiilcea : Hesse, Jahrb. Deutsch. Malak. Gesell., xi, 



p. 237. [Non Pfeiffer, 1877.] 

 1889. Cressa : Westerlund, Fauna Palaarct. Region, ii, p. 4. [Non 



Bock, 1871.] 

 1892. Metafruticicola : von Ihering, Zeitschr. f. Wissensch. Zool., liv, 



p. 452 [buried in text]. 

 1902. Metafruticola [err. typ.] : Westerlund, Rad Jugoslav. Akad., 



cli, p. 92. 



Subgenus ciliella, Mousson, 1872. 

 Type, Helix ciliata, Venetz. 



1838. Cernuella [pajsj : Schliiter, Kurz. syst. Verzeichn., p. 6. 

 1872. Ciliella : Mousson, Neue Denkschr. Allg. Schweiz. Gesell., 

 XXV, No. 1, 1872 (1873), p. 60. 



^^ Petasia, Beck, was proposed to take the place of Conulus, Fitzinger, 

 1833, nom. pre-occ, and like it contained species both of trochiform zonitoids 

 and trochiform helicoids. Gray, 1847,'^ selected as type of Petasia Beck's 

 first species Helix trocliiformis, Montagu = fulva, Miiller. At the same time he 

 named Helix fulva, Muller, as the type of Conulus. Petasia being preoccupied 

 was changed to Petasina, which takes of course the same type. Hence Petasina 

 displaces Euconulus, Reinhardt, 1883, and a new name is requisite for the group 

 under consideration. 



'" Pilsbry (Man. Conch., ser. 11, vol. ix, p. 277) followed Westerlund in this 

 error. 



21 Kennard & Woodward, Proc. Malac. Soc. Lond., xiii, 1919, p. 133. 



^^ Man. Conch., ser. 11, vol. iv, p. 69. 



