A simplified table for staging anuran embryos and larvae with notes on identification

The description of anuran embryos and larvae is facilitated by the use of staging tables, and such tables are indispensible to many studies involving frog life-history materials. Earlier papers in this field by the present author and others adapted existing tables to this purpose. Since this literature now involves two systems for numbering the larval stages, a brief review of the problem is in order, and a simplified table adequate for staging generalized developmental series will be presented. The proposed table is original only to the extent that it is a simplification of those already in existence.