malacostracousadj.
/maləˈkɒstrəkəs/, U.S. /ˌmæləˈkɑstrəkəs/ Zoology.
= malacostracan adj.
ΘΚΠ
the world > animals > invertebrates > phylum Arthropoda > class Crustacea > [adjective] > of or belonging to Malacostraca
malacostracous1835
malacostracan1866
1835 Philos. Trans. (Royal Soc.) 125 326 One or more types of each of the great groups of the typical Malacostracous Crustacea have been ascertained to undergo no change of form sufficiently marked to warrant the employment of the term metamorphosis.
1843 R. Owen Lect. Compar. Anat. Invertebr. Animals 176 In the Malacostracous Crustacea the mouth is closed by a small..labrum.
1877 T. H. Huxley Man. Anat. Invertebrated Animals vii. 375 A malacostracous crustacean.
1903 Amer. Naturalist 37 269 The Amphipoda may be defined as malacostracous Crustacea with a well-defined head, no carapace, [etc.].
1985 Ann. Carnegie Museum 54 319 The limestones of the Bear Gulch Member..have become famous for the quality of their diverse..faunas, including numerous specimens of malacostracous arthropods.
This entry has been updated (OED Third Edition, June 2000; most recently modified version published online March 2022).
<
adj.1835