Pyura stolonifera

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, Zootaxa 2754, pp. 27-40 : 36

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.