Hans Hillewaert:
Hypanus guttatus
Hans Hillewaert:
Fontitrygon geijskesi
Hans Hillewaert:
Hypanus americanus
Hans Hillewaert:
Urotrygon microphthalmum
Hans Hillewaert:
Egypt : Bluespotted ribbontail ray at Marsa Abu Dabbab
Hans Hillewaert:
Taeniura lymma
Hans Hillewaert:
Dasyatis pastinaca