This index was constructed by listing each article alphabetically by title and by the last name of the first author. Titles beginning with general terms or phrases (e.g., a, an, the, observations on, notes on the) are listed by the next word in the title. Second and subsequent authors are listed with a reference to the first author. All taxa included in titles are listed, but family, genus, and species names are included each time they appear in the abstracts, text, tables, and figure legends.