The large subclass Bryidae constitutes most species of mosses, but the subclass Polytrichidae also has some important members.
The subClass relationship is defined by the property subClassOf.
Most are members of the subclass Pulmonata, which also includes the terrestrial snails and slugs, but some are members of the subclass Prosobranchia; both subclasses belong to the class Gastropoda.
Oligochaete, any worm of the subclass Oligochaeta (class Clitellata, phylum Annelida).
Opisthobranch, any marine gastropod of the approximately 2,000 species of the subclass Opisthobranchia.
The Zygentoma, Archaeognatha, and Monura are placed in the subclass Apterygota (class Insecta).
Nucula, from the subclass Protobranchia, reflects the primitive bivalve ancestor.
The Library of Congress classifies Scandinavian languages in the subclass PD (Germanic and North Germanic) and Scandinavian literature in subclass PT.
We consider the subclass of satisfying the ideal property.
Let denote the subclass of consisting of univalent functions.
