Abstract
This second report of activities of the Linz Zoocode Committee is devoted to a careful analysis of the concept of nomenclatural availability in zoological nomenclature, a concept often misunderstood and misused in recent taxonomic publications. It provides a definition of this expression and establishes a new nomenclatural principle, the Principle of Availability. It addresses a number of terminological problems related to this concept and makes new proposals regarding this terminology.
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