Shell of Rhiostoma cheliopegma sp. nov. A holotype CUMZ 3985/1 from Tham Takien, Khao Chamao, Rayong B, C paratypes CUMZ 3985/2 from type locality D, E from Tham Khao Loi, Khao Chamao, Rayong D specimen CUMZ 4818 and E specimen CUMZ 4871 F paratype CUMZ 4853 from type locality with albinistic shell form.

 
 
  Part of: Tongkerd P, Tumpeesuwan S, Inkhavilay K, Prasankok P, Jeratthitikul E, Panha S, Sutcharit C (2023) Systematic revision of the snorkel snail genus Rhiostoma Benson, 1860 (Gastropoda, Caenogastropoda, Cyclophoridae) with descriptions of new species. ZooKeys 1142: 1-144. https://doi.org/10.3897/zookeys.1142.90097