Bibliographie * Site Web Internet * Photographie
Polygyratia
Polygyratia polygyrata
(Born 1778), ( 50 ) Bresil,
Compendium Landshell, p.142
FEMORALE Listing, 02/1993 p.13
Tropical Landshells, p.134 pl.13
B.Cabinet
Poppe Conchology
Polygyratia