''Milnesium antarcticum'' is a species of

Eutardigrade Eutardigrada are a class of tardigrades (Tardigrada) without lateral appendages. Primarily freshwater bound, some species have secondarily gained the ability to live in marine environments ('' Halobiotus''). By cryptobiosis many species are able ...

s in the family

Milnesiidae Milnesiidae is a Family (biology), family of tardigrades of the class Eutardigrada. It is the sole family in the Order (biology), order Apochela. In 2019, Noemi Guil and colleagues proposed to promote the order Apochela to the new Class (biology) ...

. This species differs from its cogenerate species mainly by proportions of its

claw A claw is a curved, pointed appendage found at the end of a toe or finger in most amniotes (mammals, reptiles, birds). Some invertebrates such as beetles and spiders have somewhat similar fine, hooked structures at the end of the leg or Arthro ...

s and buccopharyngeal apparatus.

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Further reading