Leptosomatides antarcticus Mawson, 1956
Leptosomatides arcticus (Filipjev, 1916)
Leptosomatides conisetosus Shuurmans Stekhoven & Mawson, 1955
Leptosomatum antarcticum von Linstow, 1892 accepted as Deontostoma antarcticum (von Linstow, 1892) Filipjev, 1916
Leptosomatum arcticum Filipjev, 1916 accepted as Leptosomatides arcticus (Filipjev, 1916)
Leptosomatum bacillatum (Eberth, 1863) Bastian, 1865 accepted as Leptosomatum sabangense Steiner, 1915
Leptosomatum clavatum Platonova, 1958
Leptosomatum crassicutis Platonova, 1958
Leptosomatum elongatum Bastian, 1865 accepted as Leptosomatum gracile Bastian, 1865
Leptosomatum gracile Bastian, 1865
Leptosomatum kerguelense Platonova, 1958
Leptosomatum sabangense Steiner, 1915
Paraleptosomatides elongatus Mawson, 1956
Paraleptosomatides spiralis Mawson, 1956