See text Phymorhynchus is a genus of sea snails, marine gastropod mollusks in the family Raphitomidae.

[1] The fusiform shell is thin, smooth, or spirally sculptured.

The anal sulcus is wide, shallow and close to the suture.

The animal is blind, with a distinct muzzle into which the proboscis is retracted.

Type: Pleurotomella castanea Dall, 1896 [2] Species within the genus Phymorhynchus include: A new species described by Warén & Bouchet in 2009 under the name Phymorhynchus cingulata from methane seeps in deep water off the Congo River[21] is a secondary homonym.