Hans Hillewaert:
Cycloscala hyalina
Hans Hillewaert:
Cycloscala revoluta
Hans Hillewaert:
Epitonium clathratulum
Hans Hillewaert:
Epitonium clementinum
Hans Hillewaert:
Epitonium japonicum
Hans Hillewaert:
Janthina umbilicata
Hans Hillewaert:
Epitonium fischeri
Hans Hillewaert:
Gyroscala commutata