Ceratinella

Ceratinella is a genus of dwarf spiders that was first described by James Henry Emerton in 1882. They are very similar to both Ceraticelus and Idionella, and the taxonomy of these spiders may change.

Species
it contains twenty-six species and one subspecies:
 * Ceratinella acerea Chamberlin & Ivie, 1933 – USA
 * Ceratinella alaskae Chamberlin & Ivie, 1947 – Russia (Middle Siberia, Far East), Canada, USA
 * Ceratinella apollonii Caporiacco, 1938 – Italy
 * Ceratinella brevipes (Westring, 1851) – Europe, Caucasus, Russia (Europe to South Siberia), Japan
 * Ceratinella brevis (Wider, 1834) (type) – Europe, Turkey, Caucasus, Russia (Europe to Far East), Central Asia, China, Korea, Japan
 * Ceratinella brunnea Emerton, 1882 – USA, Canada
 * Ceratinella buna Chamberlin, 1949 – USA
 * Ceratinella diversa Chamberlin, 1949 – USA
 * Ceratinella fumifera Saito, 1939 – Japan
 * Ceratinella hemetha Chamberlin, 1949 – USA
 * Ceratinella holocerea Chamberlin, 1949 – USA
 * Ceratinella kenaba Chamberlin, 1949 – USA
 * Ceratinella kurenshchikovi Marusik & Gnelitsa, 2009 – Russia (Far East)
 * Ceratinella major Kulczyński, 1894 – Europe
 * Ceratinella ornatula (Crosby & Bishop, 1925) – USA, Canada, Greenland
 * Ceratinella o. alaskana Chamberlin, 1949 – USA (Alaska)
 * Ceratinella parvula (Fox, 1891) – USA
 * Ceratinella plancyi (Simon, 1880) – China
 * Ceratinella playa Cokendolpher, Torrence, Smith & Dupérré, 2007 – USA
 * Ceratinella rosea Oliger, 1985 – Russia (Far East)
 * Ceratinella scabrosa (O. Pickard-Cambridge, 1871) – Europe, Caucasus, Russia (Europe to South Siberia)
 * Ceratinella sibirica Strand, 1903 – Russia (Middle Siberia)
 * Ceratinella subulata Bösenberg & Strand, 1906 – Japan
 * Ceratinella sydneyensis Wunderlich, 1976 – Australia (New South Wales)
 * Ceratinella tigana Chamberlin, 1949 – USA (Alaska)
 * Ceratinella tosior Chamberlin, 1949 – USA
 * Ceratinella wideri (Thorell, 1871) – Europe, Russia (Europe to Far East), Central Asia