Xanthonychidae

Xanthonychidae is a family of air-breathing land snails, terrestrial pulmonate gastropod mollusks in the superfamily Helicoidea.

This family is within the superorder Eupulmonata (according to the taxonomy of the Gastropoda by Bouchet & Rocroi, 2005).

2017 taxonomy
The family Xanthonychidae consists of the following subfamilies:
 * Echinichinae F.G. Thompson & Naranjo-García, 2012
 * Epiphragmophorinae Hoffmann, 1928
 * Helminthoglyptinae Pilsbry, 1939
 * Humboldtianinae Pilsbry, 1939
 * Lysinoinae Hoffmann, 1928
 * tribe Lysinoini Hoffmann, 1928
 * tribe Leptariontini H. Nordsieck, 1987 - synonym: Tryonigentinae Schileyko, 1991
 * tribe Metostracini H. Nordsieck, 1987
 * Metostracinae H. Nordsieck, 1987 : synonym of Metostracini H. Nordsieck, 1987 (original rank)
 * Monadeniinae H. Nordsieck, 1987
 * Xanthonychinae Strebel & Pfeffer, 1879

Trichodiscininae H. Nordsieck, 1987 : belongs to the family Trichodiscinidae H. Nordsieck, 1987

Lysinoidae may be treated as a separate family with subfamilies Leptariontinae, Lysinoinae and Metostracinae.

Genera
Genera in the family Xanthonychidae include:
 * Subfamily Echinichinae F.G. Thompson & Naranjo-García, 2012
 * Echinix F.G. Thompson & Naranjo-García, 2012


 * Subfamily Epiphragmophorinae Hoffmann, 1928
 * Angrandiella Ancey, 1886
 * Dinotropis Pilsbry & Cockerell, 1937
 * Doeringina Ihering, 1929
 * Epiphragmophora Doering, 1875
 * Karlschmidtia F. Haas, 1955
 * Minaselates Cuezzo & Pena, 2017
 * Pilsbrya Ancey, 1887


 * subfamily Helminthoglyptinae Pilsbry, 1939


 * Subfamily Humboldtianinae Pilsbry, 1939
 * Tribe Bunnyini H. Nordsieck, 1987
 * Bunnya H. B. Baker, 1942
 * Tribe Humboldtianini Pilsbry, 1939
 * Humboldtiana Ihering, 1892


 * Subfamily Lysinoinae Hoffmann, 1928
 * Tribe Leptariontini H. Nordsieck, 1987
 * Leptarionta Crosse & P. Fischer, 1872
 * Semiconchula Naranjo-Garcia & Polaco, 2000
 * Tryonigens Pilsbry, 1927
 * Tribe Lysinoini Hoffmann, 1928
 * Lysinoe H. Adams & A. Adams, 1855
 * Tribe Metostracini H. Nordsieck, 1987
 * Cryptostrakon W.G. Binney, 1879
 * Metostracon Pilsbry, 1900


 * Subfamily Monadeniinae H. Nordsieck, 1987
 * Monadenia Pilsbry, 1895


 * Subfamily Xanthonychinae Strebel & Pfeffer, 1879
 * Xanthonyx Crosse & P. Fischer, 1867 - the type genus of the family Xanthonychidae