IRMNG Taxon list
Cithadius cyathurae Bowman, 1972
Geeopsis incisipes (Klie, 1913)
Microarthridion berberum (Monard, 1936)
Microarthridion corbisierae Kihara & Rocha, 2007
Microarthridion fallax Perkins, 1956
Microarthridion laurenticum (Nicholls, 1940)
Microarthridion laurenticus
Microarthridion litospinatus Shen & Tai, 1973
Microarthridion littorale (Poppe, 1881)
Microarthridion perkinsi Bodin, 1970
Microarthridion reductum (Monard, 1935)
Microarthridion thanhi Tran & Chang, 2012
Neotachidius coreanus Huys, Ohtsuka, Conroy-Dalton & Kikuchi, 2005
Neotachidius parvus Huys, Ohtsuka, Conroy-Dalton & Kikuchi, 2005
Rhyncoceras elongatus Labbé, 1926 accepted as Tachidius elongatus (Labbé, 1926)
Rhyncoceras rota Labbé, 1926 accepted as Tachidius rotus (Labbé, 1926)
Sinotachidius vicinospinalis (Shen & Tai, 1964)
Tachidius abrau Kritchagin, 1877
Tachidius arcticus Olofsson, 1917
Tachidius berberus Monard, 1935 accepted as Microarthridion berberum (Monard, 1936)
Tachidius brevicornis Lilljeborg, 1853
Tachidius convergens Labbé, 1927
Tachidius crassicornis T. Scott, 1892 accepted as Microarthridion littorale (Poppe, 1881)
Tachidius discipes Giesbrecht, 1881
Tachidius elongatus (Labbé, 1926)
Tachidius fonticola Chambers, 1881
Tachidius hydrobiologicus Oliveira, 1945
Tachidius incisipes Klie, 1913
Tachidius laurenticus Nicholls, 1939
Tachidius littoralis Poppe, 1881 accepted as Microarthridion littorale (Poppe, 1881)
Tachidius longicornis Olofsson, 1917
Tachidius minutus Claus, 1866
Tachidius pygmaeus Kritchagin, 1873
Tachidius recuctum Monard, 1935 accepted as Microarthridion reductum (Monard, 1935)
Tachidius reductus Monard, 1935 accepted as Microarthridion reductum (Monard, 1935)
Tachidius rotus (Labbé, 1926)
Tachidius spitzbergensis Olofsson, 1917
Tachidius triangularis Shen & Tai, 1963
Tachidius vicinospinalis Shen & Tai, 1964 accepted as Sinotachidius vicinospinalis (Shen & Tai, 1964)
Tachidus littoralis Poppe, 1881 accepted as Microarthridion littorale (Poppe, 1881)