Shell microstructures of Provanna dongshaensis sp. nov. observed in SEM. A. Marginal exposure of specimen GMGS2-09B-C13; B. Eroded surface of specimen GMGS2-09B-C13; C, D. Marginal exposure of specimen GMGS2-09B-C14. Abbreviations: oSPL = outer simple prismatic layer; CCL = complex crossed lamellar layer; iSPL = inner simple prismatic layer. Scale bar: 200 μm (A), 100 μm (B), 50 μm (C), 30 μm (D).

 
 
  Part of: Wu C, Chen F, Tian Y, Amano K, Su X (2025) A new species of genus Provanna (Gastropoda, Abyssochrysoidea) from gas hydrate-bearing sediments of the northern South China Sea. Zoosystematics and Evolution 101(1): 45-54. https://doi.org/10.3897/zse.101.137176