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| 121147 | 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. | 2019 | Provanna stephanos | 11-12 |
| 3477 | MarineSpecies.org 2050 MarineSpecies.org. http://www.marinespecies.org/index.php | 2050 | Provanna stephanos | --> |