Key to the species of the Pyura stolonifera species complex 1. A single row of gonadic lobes forms the right gonad (African species)............................................ 2 - Two rows of gonadic lobes form the right gonad (Australasian species)........................................... 3 2. Pointed papillae on the tunic, especially around the siphons; dorsal tubercle sponge-like.................... P. herdmani - No papillae on the tunic; dorsal tubercle forms a double spiral cone.................................... P. stolonifera 3. Brown tunic, often enmeshed with sand; dorsal tubercle forms a double spiral cone...................... P. praeputialis - Tunic yellow and smooth, often with epibionts; dorsal tubercle sponge-like with two bulges............... P. dalbyi n. sp.

Published as part of Rius, Marc & Teske, Peter R., 2011, A revision of the Pyura stolonifera species complex (Tunicata, Ascidiacea), with a description of a new species from Australia, pp. 27-40 in Zootaxa 2754 on page 36, DOI: 10.5281/zenodo.207177