Key to Phylum and Class of Australian Aquatic Invertebrates

Key to Phylum and Class of Australian Aquatic Invertebrates This is the central key in this series of linked Keys to Australian Aquatic Macro-Invertebrates.  The key is designed to identify any specimen to a level corresponding approximately to Phylum or Class. For most major invertebrate groups this key points directly to a family-level subkey.  For arthropod…