Phymorhynchus turris is a species of sea snail, a marine gastropod mollusk in the family Raphitomidae.
The Japanese name of this species is Seitaka-watazoko-shajiku.[1]
The type locality of this marine species is off Cape Muroto, Nankai Trough, 32°21.3' N, 134°32.0' E, Japan, in hydrothermal vents at 3540 m.[1]