| Citation | Chen, C., H.K. Watanabe and T. Sasaki, 2019 Four new deep-sea provannid snails (Gastropoda: Abyssochrysoidea) discovered from hydrocarbon seep and hydrothermal vents in Japan. R. Soc. Open sci. 6:1-15. |
| Ref. | 121147 Chen, C., H.K. Watanabe and T. Sasaki, 2019 |
| Page | 11-12 |
| Named Used as Valid | Provanna stephanos |
| Locality | ‘Off Hatsushima’ seep site, Sagami Bay, central Honshu, Japan. |
| Distribution | ‘Off Hatsushima’ seep site, Sagami Bay, central Honshu, Japan. |