Hans Hillewaert:
Clathria atrasanguinea
Hans Hillewaert:
Clathrina clathrus
Hans Hillewaert:
Crambe crambe
Hans Hillewaert:
Desmapsamma anchorata
Hans Hillewaert:
Petrosia ficiformis
Hans Hillewaert:
Sarcotragus fasciculatus
Hans Hillewaert:
Sarcotragus spinosulus
Hans Hillewaert:
Spirastrella cunctatrix
Hans Hillewaert:
†Exanthesis labrosus