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 , this genus includes 28 species:

Ceratinella acerea Chamberlin & Ivie, 1933 – Alaska, Canada, United States Ceratinella acutalis Irfan, Zhang & Peng, 2022 – China Ceratinella alaskae Chamberlin & Ivie, 1947 – Russia (Middle Siberia, Far East), Alaska, Canada, United States Ceratinella alaskana Chamberlin, 1949 – Alaska, Canada Ceratinella apollonii Caporiacco, 1938 – Italy Ceratinella brevipes (Westring, 1851) – Europe, Caucasus, Russia (Europe to South Siberia), Japan Ceratinella brevis (Wider, 1834) – Europe, Russia (Europe to Far East), Caucasus, Turkey, Iran, Central Asia, China, Korea, Japan Ceratinella brunnea Emerton, 1882 – Alaska, Canada, United States Ceratinella buna Chamberlin, 1949 – Canada, United States Ceratinella diversa Chamberlin, 1949 – United States Ceratinella fumifera Saito, 1939 – Japan Ceratinella hemetha Chamberlin, 1949 – United States Ceratinella holocerea Chamberlin, 1949 – United States Ceratinella kenaba Chamberlin, 1949 – United States Ceratinella kurenshchikovi Marusik & Gnelitsa, 2009 – Russia (Far East) Ceratinella major Kulczyński, 1894 – Europe Ceratinella ornatula (Crosby & Bishop, 1925) – Alaska, Canada, United States, Greenland Ceratinella parvula (Fox, 1891) – Canada, United States Ceratinella plancyi (Simon, 1880) – China Ceratinella playa Cokendolpher, Torrence, Smith & Dupérré, 2007 – United States Ceratinella rosea Oliger, 1985 – Russia (Far East) Ceratinella scabrosa (O. Pickard-Cambridge, 1871) – Europe, Turkey, Caucasus, Russia (Europe to Far East) 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 – Alaska Ceratinella tosior Chamberlin, 1949 – United States Ceratinella wideri (Thorell, 1871) – Europe, Russia (Europe to Far East), Central Asia

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