36 LAND AND FRESH WATER MOLLUSKS 



Semilimax Stabile, Revue et Mag. Zool. (Guerin), Aug., 1859, p. 41 ; Moll. 



Terr. Viv. Piem., p. 23, 1864. — Kobelt, Cat. der Europ. Faun. leb. Bin- 



nenconch., p. 3, 1871 (as a section of Viirina, group of I', diaphana 



Drap.). — Pfeiffer, Nom. Hal. Viv., p. 26, 1878. 

 Pagana Gistel, Naturg. Thierr., p. 168, 1848 (new name for Vitrina Drap.). 

 PhenacoHmax Stabile, Rev. et Mag. Zool. (Guerin), Aug., 1859, p. 42 ; Moll., 



Terr. Viv. Pi6m., p. 24, 1864. — Pfeiffer, Nom. Hel. Viv., p. 27, 1878. 

 Helicolimax Kobelt, Cat. der Europ. Faun. leb. Binnenconch. , p. 4, 1 871, 



(Sect, of Vitrina, s.s.). 

 Trochoviirina Schacko, in Boettger, Jahrb. Deutsch. Mai. Ges., vii, p. 379, 



Oct., 1880; type I'iirina /ederi Boettger. 

 Gallandia Bourguignat, Descr. Nouv. Genre Gallandia, Aug., 1880, pp. 4-8, 



I St sp. Vitrina conoidca Martens. 

 Oligolimax FiSCHER, in Paulucci, Faun. Calabria, p. 37, 1880. — Paulucci, 



Bull. Soc. Mai. Ital., vii, p. 75, 1881. — Fischer, Man. de Conchyl., 



p. 464, 1883 {V. pauliiccia: Fischer). 

 Parmacellitia Sandberger, Land u. Sussw. Conch, d. Vonvelt, p. 232, pi. 



XIII, 1871. Sole ex. P. vitri/iaformis Sandb., Eocene. 

 Vitrina Pilsbry, Class. Cat. Landsh. Am., p. 25, 1898. 

 Chlamydea Westerlund, Fauna d. Pal. Reg., i, p. 19, 1886 (f. bicolor 



Westerlund, 1881). 



The shell in this group and its allies is reduced to very simple terms 

 and the differences between species appear trifling. But there appears 

 to be quite a wide range of character in the soft parts, from whence 

 it follows that several sections can be recognized in the genus as re- 

 stricted, while some species, formerly regarded as belonging to 1'itrina., 

 are now scattered in widely separated genera. 



The true Vitrina seems confined to the northern hemisphere. 

 The following sections are recognized : 



Vitrina Drap. s. s. iSoi. Type V. pellucida Miiller. Helicoli- 

 max Ferussac pere, iSoi, is identical, and Setnilimax Stabile hardly 

 separable. 



Olig-olitnax Fischer. Type V. paiilucciic Fischer. 



P/icnacolimax vStabile, 1S59. Type V. major Fer. 



Gallandia Bourguignat, Aug., iSSo. Type V. conoidea von 

 Martens. Trochoviirina Schacko, Oct., iSSo, is synonymous. 



The North American and Greenland species are true Vitrina., the 

 other forms belong to the Old World only. 



TheNew World groups Vitrinozonites Binney and Velifera Binney 

 may be regarded as of generic rank, and are extra limital to the region 

 now under discussion. 



Vitrina angelicae Beck. 



Vitrina angelicciVtECY., Index, p. I, 1837 ; name only.— Moller, Index, p. 4, 

 1842. — MORCH, Am, Jonrn. Conch,, iv, p. 27, pi. in, figs. I, 4, 1868. — 

 MoRCH, in Rink's Danish Greenland, p. 436, 1877. 

 Helix pellucida Faericius, Fauna Gronl., p. 389, 1780, not of Miiller, 1774. 



