Janulus Temporal range: 13.65–0.0 Ma[1] PreꞒ Ꞓ O S D C P T J K Pg N Miocene to Present
Janulus stephanophorus (Deshayes, 1850)
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Gastropoda
Order:	Stylommatophora
Family:	Gastrodontidae
Genus:	Janulus R.T. Lowe, 1852 [1]

Janulus is a genus of air-breathing land snails, terrestrial pulmonate gastropod mollusks in the family Gastrodontidae.

Species within the genus Janulus include:^[2]

• †Janulus angustiumbilicatus (Sacco, 1886)
• †Janulus austriacus Harzhauser & H.Binder, 2004
• Janulus bifrons (R.T.Lowe, 1831)
• †Janulus decorosus W.Yü & X.-Q.Zhang, 1982
• †Janulus densestriatus (Klika, 1891)
• †Janulus gottschicki (Jooss, 1912)
• †Janulus olisipponensis (Roman, 1907)
• Janulus pompylius (Shuttleworth, 1852)
• †Janulus schottleri Wenz, 1922
• †Janulus spadinii Manganelli, Martini & Benocci, 2011
• Janulus stephanophorus (Deshayes, 1850)
• †Janulus supracostatus (F.Sandberger, 1872)
• †Janulus suttonensis (S.V.Wood, 1872)
• Janulus traviesus Castro, Yanes, R.García, M.R.Alonso & Ibáñez, 2014

Species brought into synonymy

• Janulus joossi (Schlickum, 1979): synonym of †Discus pleuradrus (Bourguignat, 1881)

Species inquirenda

• Janulus calathus R. T. Lowe, 1852
• †Janulus disparilis (Deshayes, 1863)
• †Janulus germainae Schlickum & Geissert, 1980
• †Janulus gyrorbis (Klein, 1846)
• †Janulus moersingensis Jooss, 1918
• †Janulus rysa (S. V. Wood, 1848)
• †Janulus striatus (Eichwald, 1830)

• Nomenclator Zoologicus info