Chen, Z.-G., Y.-T. Dai, H. Zheng, S. Ouyang & X.-P. Wu. 2026. Unionetta xishuangbannaensis n. sp. is the only representative of Parreysiinae Henderson, 1935 (Bivalvia: Unionidae) in China: evidence from molecular phylogeny and morphology. Cathaica 2(5): 53-61. https://doi.org/10.5281/zenodo.19975476.
(click the figure number to see the cladogram)
+-- Gibbosula_rochechouartii
+-----------------------------------------------------+
| +-- Gibbosula_sinensis
|
--+ +----------------------------------------------------- Lamellidens_savadiensis
| |
| | +-------------------------------------------------- Trapezidens_dolichorhynchus
+--+ |
| | +----- Parreysia_keralaensis
| | +-----------------------------------------+
+--+ | | +-- Parreysia_nagpoorensis
| | +--+
| | +-- Parreysia_plagiosoma
| |
+--+ +-- Leoparreysia_tavoyensis
| +-----------------------------------------+
| | +-- Leoparreysia_olivacea
| |
| | +----- Nitia_teretiuscula
+--+ +-----------------------------------+
| | | +-- Coelatura_aegyptiaca
| | +--+
| | +-- Prisodontopsis_aviculaeformis
+--+
| +-- Indochinella_pugio
| +-----------------------------------+
| | +-- Indonaia_bonneaudii
+--+
| +----------------------------------- Radiatula_chaudhurii
| |
+--+ +-------------------------------- Songkhlanaia_songkhramensis
| |
+--+ +----------------------------- Harmandia_somboriensis
| |
+--+ +-- Unionetta_xishuangbannaensis
| +-----------------------+
| | +-- Unionetta_fabagina__2
+--+
| +----------------------- Unionetta_fabagina__1
+--+
| +-------------------- Scabies_crispata
+--+
| +----------------- Scabies_mandarinus
+--+
| +-------------- Scabies_humilis
+--+
| +----------- Scabies_pilata
+--+
| +-------- Scabies_nucleus
+--+
| +----- Scabies_scobinatus
+--+
| +-- Scabies_anceps
+--+
+-- Scabies_phaselus