the world > animals > invertebrates > phylum Arthropoda > class Crustacea > [noun] > subclass Entomostraca > order Cirripedia > suborder Thoracica > member of > shell resembling
ship-nut1704
1704 Nat. Hist. iv, in L. Wafer New Voy. & Descr. Isthmus Amer. (ed. 2) 210Ship-Nuts. Are hard Shells, which commonly adhere to Ships like the Barnacles.