Arachnids are a major class of this phylum that includes insects & crustaceans
Some of the common ones include: Barnacles; Brine
... [DOC] [TLE] Insects, Arachnids and Crustaceans [PAR] Plants and Animals  Habitat Restoration  Identifying Invasive Species ... Insects, 
arachnids and crustaceans are members of the largest category of ... mites, ticks 
and other arachnids are members of the class Arachnida.