''Monolistra calopyge'' is a species of isopod in the family

Sphaeromatidae Sphaeromatidae (marine pillbug family) is a family of isopods, often encountered on rocky shores and in shelf waters in temperate zones. The family includes almost 100 genera and 619 known marine species (and about 65 in fresh water). Within the ...

. The IUCN conservation status of ''Monolistra calopyge'' is "VU", vulnerable. The species faces a high risk of endangerment in the medium term. The IUCN status was reviewed in 1996.

References

Sphaeromatidae Articles created by Qbugbot Crustaceans described in 1982 {{isopod-stub