images/Tetrapyrgos/Tetrapyrgos_nigripes_Hemmes.jpg
Identification units
Two identification units in Tetrapyrgos are keyed out separately.
- Tetrapyrgos nigripes has a central stipe.
- Tetrapyrgos olivaceonigra has a lateral stipe.
Citation
Tetrapyrgos E.Horak, Sydowia 39: 101 (1987).