Abranchia

== Translingual == === Etymology === New Latin, from Latin a- + branchia (“gill”). === Proper noun === Abranchia (zoology) Animals without gills. (obsolete) All of those vertebrates that never have gills in their development. (dated) A taxonomic order within the class Gastropoda – somewhat similar to the order Nudibranchia. (obsolete) A taxonomic order within the phylum Annelida – annelids that lacked specialized respiratory systems, the Oligochaeta, including earthworms. === Further reading === William Dwight Whitney, Benjamin Eli Smith, editors (1895–1910), “Abranchia”, in The Century Dictionary and Cyclopedia: […], New York, N.Y.: The Century Co., →OCLC.