Mysidacea
Translingual
Proper noun
Mysidacea
(
obsolete
)
A taxonomic
group
within the
superorder
Peracarida
– certain
shrimp
-like
crustaceans
, comprising the two
extant
orders
Mysida
and
Lophogastrida
and the
prehistoric
†
Pygocephalomorpha
.