Phylum Tardigrada

Class Heterotardigrada

Family Echiniscidae Thulin, 1928

Bryochoerus Marcus, 1936

Bryochoerus intermedius (Murray, 1910)

Bryochoerus intermedius hawaiica (Thulin, 1929)

Echiniscus Schultze, 1840

Echiniscus arctomys Eherberg, 1853

Echiniscus intermedius Murray, 1910

Echiniscus mutabilis Marray, 1906

Echiniscus perarmatus Murray, 1907

Echiniscus sp. -

Echiniscus spinulosus (Doyere, 1840)

Echiniscus viridis Murray, 1910

Pseudechiniscus Thulin, 1928

Pseudechiniscus novaezeelandiae (Richters, 1908)

Pseudechiniscus suillus (Ehrenberg, 1853)

Family Halechiniscidae Thulin, 1928

Diplodarctus Pollock, 1995

Diplodarctus anaholiensis Pollock, 1995

Diplodarctus borrori Pollock, 1995

Family Macrobiotidae Thulin, 1928

Dactylobiotus Schuster, Nelson, Grigarick, & Chritenberry,

Dactylobiotus ambiguus (Murray, 1907)

Diphascon Plate, 1889

Diphascon (Adropion) scoticum Murray, 1905

Macrobiotus Schultze, 1834

Macrobiotus crassidens Murray, 1907

Macrobiotus harmsworthi (Murray, 1907)

Macrobiotus hufelandii (Perty, 1834)

Macrobiotus occidentalis Murray, 1910

Macrobiotus sp. -

Minibiotus Schuster, Nelson, & Christenberry, 1989

Minibiotus intermedius (Plate, 1888)

Family Milnesiidae

Milnesium

Milnesium tardigradum Doyere, 1840

Family Hypsibiidae Pilato, 1969

Hebesuncus Pilato, 1987

Hebesuncus conjungens (Thulin, 1911)

Hypsibius Thulin, 1928

Hypsibius canadensis (Murray, 1910)

Hypsibius convergens (Urbanowicz, 1925)

Ramazzottius Binda & Pilato, 1987

Ramazzottius oberhauseri (Doyere, 1840)